mcq on moment

[leow ting yang]

Refer to image

[MrPolarons]

Hi hi

To solve this qns, we have to look at the qns in this way. The Y mass pulling down will cause the N pole above pressing down on the N pole below. Hence there will be a repulsion force upwards on the magnet which will result in an ACWM.

So there are 2 ACWM. one from the magnet and the other one due to mass X. This is balance by the CWM generated by Y. By this analysis, ACWM generated by X must be less than Y right?

Look thru the four choices, which ans give X lesser moment than Y.

rgds

On Fri, Sep 13, 2013 at 1:02 PM, leow ting yang <leow...@gmail.com> wrote:

Refer to image

--
You received this message because you are subscribed to the Google Groups "Physics at Catholic High" group.
Visit this group at http://groups.google.com/group/chsphysics.

[leow ting yang]

Oh ya.  Thanks Mr tan