MEDIUM
NEET
IMPORTANT
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If the kinetic energy is increased by , the momentum will increase by:-
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Important Questions on Centre of Mass, Momentum and Collisions
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If the kinetic energy of a body increases by the momentum
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A projectile is fired at with momentum , neglecting friction, the change in kinetic energy, when it returns to the ground, will be:-
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Three identical spheres each of mass are placed touching one another with their centres in a straight line. Their centres are marked as respectively. The distance of centre of mass of the system from is
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A uniform metal disc of radius R is taken and out of it a disc of diameter is cut off from the end. The centre of mass of the remaining part will be:
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The coordinate of the centre of mass of a system as shown in figure :-
HARD
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The centre of mass of a system of particles does not depend on
MEDIUM
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IMPORTANT
The centre of mass of a system of two particles divides the distance between them:
EASY
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The centre of mass of a body,
