23i suppose we r viewing the arrangement from top ......
bcz it is free to rotate only in the horizontal plane ,
taking torque of weight into account will lead to rotation in the vertical plane too !!! wich is restricted as per the question
1....UNIFORM ROD OF LENGTH L AND MASS M..IT IS FREE TO ROTATE IN A HORIZONTAL PLANE ABOUT A VERTICAL AXIS THROUGH ITS ONE END..IN EQUILIBRIUM IT IS PARALLEL TO WALL..
(A)WHAT IS THE PERIOD OF SMALL OSCILLATION THAT RESULT WHEN THE ROD IS SLIGHTLY ROTATED IN AND RELEASED???
in answer torque is taken about o but torque of weight is not taken into account.......why?????
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