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Easy
Question
A point mass m is released from rest at a distance of 3R from the centre of a thin walled hollow sphere of radius R and mass M as shown. The hollow sphere is fixed in position and the only force on the point mass is the gravitational attraction of the hollow sphere. There is a very small hole in the hollow sphere through which the point mass falls as shown. The velocity of point mass when it passes through point P at a distance R/2 from centre of sphere, is
- None of these
The correct answer is: None of these
Inside spherical shell V is constant, so from energy convocation
Is 
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