Stationary helicopter in air. Neo hanging in air with 1 km long rope.
One end of rope attached to helicopter and other end in hands of neo.
Suppose speed of compression waves in rope is 100 m/s. If rope at
helicopter end is cut, will neo hang in air for 10 seconds without any
support?
If length of rope is x meter and speed of compression waves in
medium(rope) is y m/s then will object hang in air for x/y seconds?
If yes, why gravity wait for compression waves to travel within rope?
How does gravity communicate with compression waves?
Stationary helicopter in air. Neo hanging in air with 1 km long rope.
One end of rope attached to helicopter and other end in hands of neo.
Suppose speed of compression waves in rope is 100 m/s. If rope at
helicopter end is cut, will neo hang in air for 10 seconds without any
support?
If length of rope is x meter and speed of compression waves in
medium(rope) is y m/s then will object hang in air for x/y seconds?
If yes, why gravity wait for compression waves to travel within rope?
How does gravity communicate with compression waves?
> Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> One end of rope attached to helicopter and other end in hands of neo.
> Suppose speed of compression waves in rope is 100 m/s. If rope at
> helicopter end is cut, will neo hang in air for 10 seconds without any
> support?
> If length of rope is x meter and speed of compression waves in
> medium(rope) is y m/s then will object hang in air for x/y seconds?
> If yes, why gravity wait for compression waves to travel within rope?
> How does gravity communicate with compression waves?
Why you call stretch "compression"?
Stretch pull, compression push.
Neo not push helicopter up.
> news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...> Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > One end of rope attached to helicopter and other end in hands of neo.
> > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > helicopter end is cut, will neo hang in air for 10 seconds without any
> > support?
> > If length of rope is x meter and speed of compression waves in
> > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > If yes, why gravity wait for compression waves to travel within rope?
> > How does gravity communicate with compression waves?
> Why you call stretch "compression"?
> Stretch pull, compression push.
> Neo not push helicopter up.
On Sat, 19 May 2012 12:09:38 -0700 (PDT), Rama <R...@Live.In> wrote:
>Stationary helicopter in air. Neo hanging in air with 1 km long rope.
>One end of rope attached to helicopter and other end in hands of neo.
>Suppose speed of compression waves in rope is 100 m/s. If rope at
>helicopter end is cut, will neo hang in air for 10 seconds without any
>support?
>If length of rope is x meter and speed of compression waves in
>medium(rope) is y m/s then will object hang in air for x/y seconds?
>If yes, why gravity wait for compression waves to travel within rope?
>How does gravity communicate with compression waves?
> news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...> Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > One end of rope attached to helicopter and other end in hands of neo.
> > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > helicopter end is cut, will neo hang in air for 10 seconds without any
> > support?
> > If length of rope is x meter and speed of compression waves in
> > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > If yes, why gravity wait for compression waves to travel within rope?
> > How does gravity communicate with compression waves?
> Why you call stretch "compression"?
> Stretch pull, compression push.
> Neo not push helicopter up.
> news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...> > Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > One end of rope attached to helicopter and other end in hands of neo.
> > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > helicopter end is cut, will neo hang in air for 10 seconds without any
> > support?
> > If length of rope is x meter and speed of compression waves in
> > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > If yes, why gravity wait for compression waves to travel within rope?
> > How does gravity communicate with compression waves?
> Why you call stretch "compression"?
> Stretch pull, compression push.
> Neo not push helicopter up.
What do you mean?
=====================
Not if yes. Gravity not wait. Gravity not communicate. Gravity not give a shit.
You idiot.
> news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...> Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > One end of rope attached to helicopter and other end in hands of neo.
> > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > helicopter end is cut, will neo hang in air for 10 seconds without any
> > support?
> > If length of rope is x meter and speed of compression waves in
> > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > If yes, why gravity wait for compression waves to travel within rope?
> > How does gravity communicate with compression waves?
> Why you call stretch "compression"?
> Stretch pull, compression push.
> Neo not push helicopter up.
> >news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...>
> > Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > > One end of rope attached to helicopter and other end in hands of neo.
> > > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > > helicopter end is cut, will neo hang in air for 10 seconds without any
> > > support?
> > > If length of rope is x meter and speed of compression waves in
> > > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > > If yes, why gravity wait for compression waves to travel within rope?
> > > How does gravity communicate with compression waves?
> > Why you call stretch "compression"?
> > Stretch pull, compression push.
> > Neo not push helicopter up.
> What do you mean?
> =====================
> Not if yes. Gravity not wait. Gravity not communicate. Gravity not give a
> shit.
> You idiot.
Does that mean neo will start falling at EXACTLY same moment rope at
helicopter end is cut? Information across rope travels instantaneously?
On Saturday, May 19, 2012 12:09:38 PM UTC-7, Rama wrote:
> Stationary helicopter in air. Neo hanging in
> air with 1 km long rope. One end of rope
> attached to helicopter and other end in hands
> of neo. Suppose speed of compression waves in
> rope is 100 m/s.
That is like sponge rubber.
> If rope at helicopter end is cut, will neo hang
> in air for 10 seconds without any support?
The system of Neo-and-rope fall when no longer connected to helicopter. The propagation speed only describes how fast the rope comes towards Neo. Neo will approach the far end of the rope based on what the rope's mass-per-unit length is. The system's center of mass will appear to drop when released
> >news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...>
> > Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > > One end of rope attached to helicopter and other end in hands of neo.
> > > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > > helicopter end is cut, will neo hang in air for 10 seconds without any
> > > support?
> > > If length of rope is x meter and speed of compression waves in
> > > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > > If yes, why gravity wait for compression waves to travel within rope?
> > > How does gravity communicate with compression waves?
> > Why you call stretch "compression"?
> > Stretch pull, compression push.
> > Neo not push helicopter up.
> What do you mean?
> =====================
> Not if yes. Gravity not wait. Gravity not communicate. Gravity not give a
> shit.
> You idiot.
Does that mean neo will start falling at EXACTLY same moment rope at
helicopter end is cut? Information across rope travels instantaneously?
================================================
Rope at helicopter end start falling at EXACTLY same moment rope at
helicopter end is cut, Neo start falling at EXACTLY same moment,
rope not compresses.
> On Saturday, May 19, 2012 12:09:38 PM UTC-7, Rama wrote:
> > Stationary helicopter in air. Neo hanging in
> > air with 1 km long rope. One end of rope
> > attached to helicopter and other end in hands
> > of neo. Suppose speed of compression waves in
> > rope is 100 m/s.
> That is like sponge rubber.
> > If rope at helicopter end is cut, will neo hang
> > in air for 10 seconds without any support?
> The system of Neo-and-rope fall when no longer connected to helicopter.
So you mean neo will start falling at EXACTLY same moment rope at
helicopter is cut. That means info about rope cut at helicopter end
travels to neo(who is 1 km away) instantaneously. You want to say this?
> > >news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...>
> > > Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > > > One end of rope attached to helicopter and other end in hands of neo.
> > > > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > > > helicopter end is cut, will neo hang in air for 10 seconds without any
> > > > support?
> > > > If length of rope is x meter and speed of compression waves in
> > > > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > > > If yes, why gravity wait for compression waves to travel within rope?
> > > > How does gravity communicate with compression waves?
> > What do you mean?
> > =====================
> > Not if yes. Gravity not wait. Gravity not communicate. Gravity not give a
> > shit.
> > You idiot.
> Does that mean neo will start falling at EXACTLY same moment rope at
> helicopter end is cut? Information across rope travels instantaneously?
> ================================================
> Rope at helicopter end start falling at EXACTLY same moment rope at
> helicopter end is cut, Neo start falling at EXACTLY same moment,
> rope not compresses.
So as neo starts falling at EXACTLY same moment the rope at helicopter
end is cut and as length of rope between helicopter end and neo is 1
km hence info about rope cut at helicopter end travels across rope to
neo instantaneously. But FTL info travel is not allowed.
> > >news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...>
> > > Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > > > One end of rope attached to helicopter and other end in hands of neo.
> > > > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > > > helicopter end is cut, will neo hang in air for 10 seconds without any
> > > > support?
> > > > If length of rope is x meter and speed of compression waves in
> > > > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > > > If yes, why gravity wait for compression waves to travel within rope?
> > > > How does gravity communicate with compression waves?
> > What do you mean?
> > =====================
> > Not if yes. Gravity not wait. Gravity not communicate. Gravity not give a
> > shit.
> > You idiot.
> Does that mean neo will start falling at EXACTLY same moment rope at
> helicopter end is cut? Information across rope travels instantaneously?
> ================================================
> Rope at helicopter end start falling at EXACTLY same moment rope at
> helicopter end is cut, Neo start falling at EXACTLY same moment,
> rope not compresses.
So as neo starts falling at EXACTLY same moment the rope at helicopter
end is cut and as length of rope between helicopter end and neo is 1
km hence info about rope cut at helicopter end travels across rope to
neo instantaneously. But FTL info travel is not allowed.
> Stationary helicopter in air. Neo hanging in air with 1 km long rope.
Rope stretches. Was it 1 km long before Neo used it for support, or
was it shorter so that Neo's weight stretches it to 1 km? Not that it
really matters; what matters is that the rope is stretched.
> One end of rope attached to helicopter and other end in hands of neo.
> Suppose speed of compression waves in rope is 100 m/s. If rope at
> helicopter end is cut, will neo hang in air for 10 seconds without any
> support?
"Compression waves" in rope? No such thing; what you want is the
rate at which stretched rope relaxes to its original length. That
varies with the material the rope is made of, how it is twisted, etc.
Anyway, no, Neo will not obey "cartoon physics"- you are erroneously
seeing Neo suspended from the free, upper end of the rope, which you
must remember is *falling*. The helicopter, the rope, and Neo all feel
the force of gravity. Neo and the rope start to fall instantly the
rope is cut, which also releases the tension on the rope. The rope
immediately begins to return to its unstretched length, putting an
upward force component on Neo, slightly slowing his fall rate until
the rope reaches its original, unstretched length, thus you must see
Neo as being effectively suspended from the center of mass of the
rope, which is *falling*. The free upper end of the rope falls
*faster* than it would if it were not under tension. The center of
mass of the Neo/rope system falls at the same rate anything else
would.
> > >news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...>
> > > Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > > > One end of rope attached to helicopter and other end in hands of neo.
> > > > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > > > helicopter end is cut, will neo hang in air for 10 seconds without any
> > > > support?
> > > > If length of rope is x meter and speed of compression waves in
> > > > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > > > If yes, why gravity wait for compression waves to travel within rope?
> > > > How does gravity communicate with compression waves?
> > What do you mean?
> > =====================
> > Not if yes. Gravity not wait. Gravity not communicate. Gravity not give a
> > shit.
> > You idiot.
> Does that mean neo will start falling at EXACTLY same moment rope at
> helicopter end is cut? Information across rope travels instantaneously?
> ================================================
> Rope at helicopter end start falling at EXACTLY same moment rope at
> helicopter end is cut, Neo start falling at EXACTLY same moment,
> rope not compresses.
So as neo starts falling at EXACTLY same moment the rope at helicopter
end is cut and as length of rope between helicopter end and neo is 1
km hence info about rope cut at helicopter end travels across rope to
neo instantaneously. But FTL info travel is not allowed.
"Rama" <R...@Live.In> wrote:
"Androcles" <M...@May.2012> wrote:
> "Rama" <R...@Live.In> wrote in message
> "Androcles" <M...@May.2012> wrote:
> > "Rama" <R...@Live.In> wrote in message
"Rama" <R...@Live.In> wrote:
> > Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > > One end of rope attached to helicopter and other end in hands of neo.
> > > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > > helicopter end is cut, will neo hang in air for 10 seconds without any
> > > support?
> > > If length of rope is x meter and speed of compression waves in
> > > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > > If yes, why gravity wait for compression waves to travel within rope?
> > > How does gravity communicate with compression waves?
Andro wrote:
> Not if yes. Gravity not wait. Gravity not communicate.
>L Gravity not give a shit.
> You idiot.
Rama wrote:
Does that mean neo will start falling at EXACTLY same moment rope at
helicopter end is cut? Information across rope travels instantaneously?
hanson wrote:
That all depends on who "neo" is and what "neo" does...
Is it neo-con, neo-nazi, neolith, near earth object, Keanu Reaves,
neoprene, neodymium, neoplasm, neonatal, neozoic, neo-neo?
On May 19, 3:42 pm, Rama <mr.ra...@googlemail.com> wrote:
> So you mean neo will start falling at EXACTLY same moment rope at
> helicopter is cut. That means info about rope cut at helicopter end
> travels to neo(who is 1 km away) instantaneously. You want to say this?
Mr. Rama, I believe you are absolutely right. Neo will take a little
bit before falling. You can think of each bit of rope as a little
spring so that the whole rope is like a chain of little springs. If we
like we can mentally divide up the rope into little decimeter segments
and number them under the cut all the way down to Neo like segment 1,
2, 3 and so on. Before the cut segment 2 does not fall because segment
1 is holding it up. Segment 1 applies a force on segment 2 because it
is stretched a little. I do not remember whether this law is Young's
law or Hooke's law. But I remember that it is that the restoring force
is proportion to its stretch. In my thinking segment 1 won't stop
pulling on segment 2 until the other end has moved a little so that it
is not so stretched. When segment 1 is stretched a little less then
the force holding up segment 2 will start to decrease and so then the
top of segment 2 will begin to fall and so segment 2 will be less
stretched so it will pull a little less hard on segment 3 and so on.
In my mind if this really were a chain of little springs and I moved
the top end of spring 1 a little then this would result in some kind
of wave or signal pulse traveling down the chain of springs. It may be
very possible that in a rope this traveling would be connected to the
speed of sound in the rope. It makes much sense to me because sound
after all starts with a little displacement at one end.
I don't believe Neo begins to fall until segment 10 000 no longer
feels held up by segment 9 999 and that's when segment 10 000 starts
to fall too. That would be just before Neo starts to fall.
I think one question that would come out of this is what if Neo
weren't on the end of the rope at all? What if it were just a rope
hanging there? By the thinking above I would have to believe that the
top of the rope starts to fall before the bottom of the rope does. Is
this possible? I think it is. Here is how I think about it. With the
rope just hanging there is still a force that stretches the rope -- it
is the force of the helicopter pulling on the top end equal to the
weight of the rope. When the rope is cut I think what must happen is
that the center of mass of the rope must start falling with
acceleration 9.8 m/s/s. That is Newton's second law. But this can be
satisfied even if the bottom of the rope does not start moving right
away. This can happen with the rope getting shorter because it is less
stretched so that the center of mass moves because only the top moves.
As the rope relaxes the top of the rope surely accelerates FASTER than
9.8 m/s/s. This is because there is no force pulling up on the top of
the rope but there is both the weight of that part of the rope AND the
stretch force of all the rope under it pulling it down. By this
thinking the behavior of the rope is that the middle of the rope is
accelerating down at 9.8 m/s/s and the top of the rope is accelerating
downward much faster than 9.8 m/s/s and the bottom of the rope is
accelerating down at must slower than 9.8 m/s/s. So the top of the
rope could conceivable catch up with the bottom of the rope as the
whole rope falls. This makes sense to me because that is the kind of
whiplash that is so dangerous when a taut cable breaks. It is not the
end far from the break that is dangerous. It is the end near the break
that can be flying at supersonic speeds and can kill people.
If what I am thinking is right then Neo won't start falling right away
but he might be killed by the top of the rope coming down and hitting
him very hard in the head. But someone who is a scientist might tell
you that I am full of garbage and that nothing I have told you is
right.
> > >news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...>
> > > Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > > > One end of rope attached to helicopter and other end in hands of > > > > neo.
> > > > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > > > helicopter end is cut, will neo hang in air for 10 seconds without > > > > any
> > > > support?
> > > > If length of rope is x meter and speed of compression waves in
> > > > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > > > If yes, why gravity wait for compression waves to travel within > > > > rope?
> > > > How does gravity communicate with compression waves?
> > What do you mean?
> > =====================
> > Not if yes. Gravity not wait. Gravity not communicate. Gravity not give > > a
> > shit.
> > You idiot.
> Does that mean neo will start falling at EXACTLY same moment rope at
> helicopter end is cut? Information across rope travels instantaneously?
> ================================================
> Rope at helicopter end start falling at EXACTLY same moment rope at
> helicopter end is cut, Neo start falling at EXACTLY same moment,
> rope not compresses.
So as neo starts falling at EXACTLY same moment the rope at helicopter
end is cut and as length of rope between helicopter end and neo is 1
km hence info about rope cut at helicopter end travels across rope to
neo instantaneously. But FTL info travel is not allowed.
What do you say?
=========================================
I say Einstein was an idiot, but that has nothing to do with
helicopters and ropes.
On Saturday, May 19, 2012 1:42:25 PM UTC-7, Rama wrote:
> dlzc wrote:
> > Dear Rama:
> > On Saturday, May 19, 2012 12:09:38 PM UTC-7, Rama wrote:
> > > Stationary helicopter in air. Neo hanging in
> > > air with 1 km long rope. One end of rope
> > > attached to helicopter and other end in hands
> > > of neo. Suppose speed of compression waves in
> > > rope is 100 m/s.
> > That is like sponge rubber.
> > > If rope at helicopter end is cut, will neo hang
> > > in air for 10 seconds without any support?
> > The system of Neo-and-rope fall when no longer
> > connected to helicopter.
> So you mean neo will start falling at EXACTLY same
> moment rope at helicopter is cut. That means info
> about rope cut at helicopter end travels to neo
> (who is 1 km away) instantaneously. You want to
> say this?
Have you never watched video of people bungie jumping, who's bungie broke?
Neo does not accelerate downwards at 9.81 m/sec^2 with respect to the Earth right away, but the entire system responds to the loss of support.
Remember, the helicopter is the one accelerating at 9.81 m/sec^2 off its default elliptical orbit. Neo and the rope are no longer accelerated by the helicopter's rotor, the instant the rope is cut. The center of mass of the Neo + rope system just follows its orbit until displaced by wind or Earth (and maybe Fire too...).
On May 19, 11:35 pm, LaLALa <lajourney...@gmail.com> wrote:
> On May 19, 3:42 pm, Rama <mr.ra...@googlemail.com> wrote:
> > So you mean neo will start falling at EXACTLY same moment rope at
> > helicopter is cut. That means info about rope cut at helicopter end
> > travels to neo(who is 1 km away) instantaneously. You want to say this?
> Mr. Rama, I believe you are absolutely right. Neo will take a little
> bit before falling. You can think of each bit of rope as a little
> spring so that the whole rope is like a chain of little springs.
[snip crap]
> hanging there? By the thinking above I would have to believe that the
> top of the rope starts to fall before the bottom of the rope does. Is
> this possible? I think it is.
only if the rope is short, otherwise higher gravity
at bottom end and close to zero at the top
the centrifugal force may even hold the rope
suspended
> On Saturday, May 19, 2012 1:42:25 PM UTC-7, Rama wrote:
> > dlzc wrote:
> > > Dear Rama:
> > > On Saturday, May 19, 2012 12:09:38 PM UTC-7, Rama wrote:
> > > > Stationary helicopter in air. Neo hanging in
> > > > air with 1 km long rope. One end of rope
> > > > attached to helicopter and other end in hands
> > > > of neo. Suppose speed of compression waves in
> > > > rope is 100 m/s.
> > > That is like sponge rubber.
> > > > If rope at helicopter end is cut, will neo hang
> > > > in air for 10 seconds without any support?
> > > The system of Neo-and-rope fall when no longer
> > > connected to helicopter.
> > So you mean neo will start falling at EXACTLY same
> > moment rope at helicopter is cut. That means info
> > about rope cut at helicopter end travels to neo
> > (who is 1 km away) instantaneously. You want to
> > say this?
> Have you never watched video of people bungie jumping, who's bungie broke?
> Neo does not accelerate downwards at 9.81 m/sec^2 with respect to the Earth right away, but the entire system responds to the loss of support.
> Remember, the helicopter is the one accelerating at 9.81 m/sec^2 off its default elliptical orbit. Neo and the rope are no longer accelerated by the helicopter's rotor, the instant the rope is cut. The center of mass of the Neo + rope system just follows its orbit until displaced by wind or Earth (and maybe Fire too...).
> > >news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...>
> > > Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > > > One end of rope attached to helicopter and other end in hands of neo.
> > > > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > > > helicopter end is cut, will neo hang in air for 10 seconds without any
> > > > support?
> > > > If length of rope is x meter and speed of compression waves in
> > > > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > > > If yes, why gravity wait for compression waves to travel within rope?
> > > > How does gravity communicate with compression waves?
> > What do you mean?
> > =====================
> > Not if yes. Gravity not wait. Gravity not communicate. Gravity not give a
> > shit.
> > You idiot.
> Does that mean neo will start falling at EXACTLY same moment rope at
> helicopter end is cut? Information across rope travels instantaneously?
> ================================================
> Rope at helicopter end start falling at EXACTLY same moment rope at
> helicopter end is cut, Neo start falling at EXACTLY same moment,
> rope not compresses.
how you know that, can you show
an animation ?
put some numbers and show your
animation of the rope
> Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> One end of rope attached to helicopter and other end in hands of neo.
> Suppose speed of compression waves in rope is 100 m/s. If rope at
> helicopter end is cut, will neo hang in air for 10 seconds without any
> support?
> If length of rope is x meter and speed of compression waves in
> medium(rope) is y m/s then will object hang in air for x/y seconds?
> If yes, why gravity wait for compression waves to travel within rope?
> How does gravity communicate with compression waves?
xxein: It doesn't. they are two separate things. Neo will instantly
fall because gravity at his position says so. Yes, the rope
compressing has an effect as long as Neo is holding it. But that has
no direct connection to gravity. Neither does a trampoline. It only
affects a motion - not the gravity at Neo's point.
> > >news:df98e433-501f-4b2d-81b2-872958ad1d02@kw17g2000pbb.googlegroups.com...>
> > > Stationary helicopter in air. Neo hanging in air with 1 km long rope.
> > > > One end of rope attached to helicopter and other end in hands of > > > > neo.
> > > > Suppose speed of compression waves in rope is 100 m/s. If rope at
> > > > helicopter end is cut, will neo hang in air for 10 seconds without > > > > any
> > > > support?
> > > > If length of rope is x meter and speed of compression waves in
> > > > medium(rope) is y m/s then will object hang in air for x/y seconds?
> > > > If yes, why gravity wait for compression waves to travel within > > > > rope?
> > > > How does gravity communicate with compression waves?
> > What do you mean?
> > =====================
> > Not if yes. Gravity not wait. Gravity not communicate. Gravity not give > > a
> > shit.
> > You idiot.
> Does that mean neo will start falling at EXACTLY same moment rope at
> helicopter end is cut? Information across rope travels instantaneously?
> ================================================
> Rope at helicopter end start falling at EXACTLY same moment rope at
> helicopter end is cut, Neo start falling at EXACTLY same moment,
> rope not compresses.
So as neo starts falling at EXACTLY same moment the rope at helicopter
end is cut and as length of rope between helicopter end and neo is 1
km hence info about rope cut at helicopter end travels across rope to
neo instantaneously. But FTL info travel is not allowed.
What do you say?
====================================
I say you wasting your time posting same more than once,
I watch TV and not answer you until I'm ready to.
