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A ball hits the floor and rebounds after inelastic collision. In this case |
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a) |
The momentum of the ball just after the collision is the same as that just before the collision |
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b) |
The mechanical energy of the ball remains the same in the collision |
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c) |
The total momentum of the ball and the earth is conserved |
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d) |
The total energy of the ball and the earth is conserved |
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A ball hits the floor and rebounds after inelastic collision. In this case |
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a) |
The momentum of the ball just after the collision is the same as that just before the collision |
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b) |
The mechanical energy of the ball remains the same in the collision |
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c) |
The total momentum of the ball and the earth is conserved |
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d) |
The total energy of the ball and the earth is conserved |
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(c) By the conservation of momentum in the absence of external force total momentum of the system (ball + earth) remains constant |