IITJEE tips and tricks(String, Pulleys and Springs)
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physicsexpert
Mar 22, 2010, 2:25:05 AM3/22/10
to physicsgoeasy
A lot of problems in mechanics involves string, pulley and springs for
example masses are attached to string or spring and so on. Here are
some concepts you need to remember while solving problems involving
string, spring and pulleys.
(1) String
A. If not staded in the question consider the string to be
inextensible.
B. Different blocks connected to an inextensible string would have
same acceleration and for extensible string blocks would have
different acceleration until the string can stretch.
C. Unless otherwise specified consider the string to be light i.e.,
consider its mass to be negligible in comparison to the block
connected to it.
example masses are attached to string or spring and so on. Here are
some concepts you need to remember while solving problems involving
string, spring and pulleys.
(1) String
A. If not staded in the question consider the string to be
inextensible.
B. Different blocks connected to an inextensible string would have
same acceleration and for extensible string blocks would have
different acceleration until the string can stretch.
C. Unless otherwise specified consider the string to be light i.e.,
consider its mass to be negligible in comparison to the block
connected to it.
For full post visit http://physicsgoeasy.blogspot.com
Thanks and regards
Physics Expert
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