Rotational MotionMedium
Question
A slender uniform rod of length l is balanced vertically at a point P on a horizontal surface having some friction. If the top of the rod is displaced slightly to the right, the position of its centre of mass at the time when the rod becomes horizontal
Options
A.lies at some point to the right of P
B.lies at some point to the left of P
C.must be 
to the right of P
to the right of PD.lies at P
Solution
As we displace to the right, lower point of rod is having tendency to move towards left. So friction is in direction right so center of mass will move right.
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