EASY
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IMPORTANT
Earn 100
The unit of the coefficient of restitution is -
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Important Questions on Centre of Mass, Momentum and Collisions
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Two solid balls of rubber A and B whose masses are 200 gm and 400 gm respectively, are moving in mutually opposite directions. If the velocity of ball A is 0.3 m/s and both the balls come to rest after collision, then the velocity of ball B is -
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A ball falls from a height of and again goes up after colliding with the ground up to a height of . The coefficient of restitution is:
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A bullet moving with a velocity of gets embedded into a stationary body. The loss in KE of the system will be
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A bullet of mass m moving with a speed v strikes a wooden block of mass M and gets embedded into the block. The final speed is :-
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A ball is dropped from height h on the ground level. If the coefficient of restitution is e then the height upto which the ball will go after nth jump will be :
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Two bodies of same mass are moving with same speed V in mutually opposite directions. They collide and stick together. The resultant velocity of the system will be -
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The bob (mass m) of a simple pendulum of length L is held horizontal and then released. It collides elastically with a block of equal mass lying on a frictionless table. The kinetic energy of the block will be :-
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Two particles each of mass m travelling with velocities u1 and u2 collide perfectly inelastically. The loss of kinetic energy will be -
