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The figure shows a man of mass m standing at the end A of a trolley of mass M placed at rest on a smooth horizontal surface. The man starts moving towards the end B with a velocity urel with respect to the trolley. The length of the trolley is L When the man starts moving, then the velocity of the trolley v2 with respect to ground will be
The correct answer is:
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A ball of mass m = 60gm is shot with speed v0 = 22m/s into the barrel of spring gun of mass M = 240g initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring
What fraction of initial kinetic energy of the ball is now stored in the spring?
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