Point masses
and
are placed at the opposite ends of a rigid rod of length
, and negligible mass. The rod is to be set rotating about an axis perpendicular to it. The position of point
on this rod through which the axis should pass so that the work required to rotate the rod minimum angular velocity
is minimum, is given by

Text Solution
Verified by ExpertsThe correct answer is:
A
For minimum work, the rod must pass through C.O.M., i.e., C.O.M 

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