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Physics Question, chapter Dynamics
A metre scale 'PQ' of uniform thickness and weighing 100 \rm{g_{wt}}gwt is suspended by means of a string to a rigid support at a point 'R' on it such that \boxed{\sf{PR: QR = 2:3}}PR:QR=2:3 . At the end 'P' a load of 85 \sf{g_{wt}}gwt is attached.
1. Find the load attached at Q such that the scale is in equilibrium.
2. If 'S' is a point on the scale such that \boxed{\sf{PR: SR = 2:1}}PR:SR=2:1 and the load at 'Q' is shifted to 'S', find the percentage change in and the the load, in shifting it from 'Q' and 'S'; to maintain equilibrium state of the scale.
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