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Sahay Sir > Question Answers > NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions > Physics > Chapter 11 - Rotational Mechanics > Point masses m1​ and m2​ are placed at the opposite ends of a rigid rod of length L, and negligible mass. The rod is to be set rotating about an axis perpendicular to it. The position of point P on this rod through which the axis should pass so that the work required to set the rod rotating with angular velocity ω0​ is minimum, is given by:

Point masses m1​ and m2​ are placed at the opposite ends of a rigid rod of length L, and negligible mass. The rod is to be set rotating about an axis perpendicular to it. The position of point P on this rod through which the axis should pass so that the work required to set the rod rotating with angular velocity ω0​ is minimum, is given by:

a circular hole of diameter R From a disc of radius R and mass M passing through the centre? Point masses m1​ and m2​ are placed at the opposite ends of a rigid rod of length L whose rim passes through the centre is cut. What is the moment of inertia of the remaining part of the disc about a perpendicular axis