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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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Important Questions on Centre of Mass, Momentum and Collisions
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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 -
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A ball moving with velocity of collides with another similar stationary ball. After the collision both the balls move in directions making an angle of with the initial direction. After the collision, their speed will be-
