From a solid sphere of mass M and radius R, a spherical portion of radius R/2 is removed, as shown in the figure Taking gravitational potential V=0atr=∞, the potential at (G = gravitational constatn)
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A stone is allowed to fall from the top of a tower 100m high and at the same time another stone is projected vertically upwards from the ground with a velocity of 25m/s. Calculate when and where the two stones will meet.
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When a body is fully immersed in a liquid the apparent loss in the weight of body is equal to :
Buoyant force is directed
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A particle of mass M is placed at the centre of a uniform spherical shell of equal mass and radius a. Find the gravitational potential at a point P at a distance 2a from the centre.