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A ball hits the floor and rebounds after...

A ball hits the floor and rebounds after an inelastic collision. In this case

A

The momentum of the ball just after the collision is the same as that just before the collision

B

The mechanical energy of the ball remains the same in the collision

C

The total momentum of the ball and the earth is conserved

D

The total energy of the ball and the earth is conserved

Text Solution

Verified by Experts

The correct Answer is:
C

By the conservation of momentum in the absence of external force total momentum of the system (ball + earth) remains constant.
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Knowledge Check

  • A ball hits a floor and rebounds after an inelastic collision. In this case

    A
    the momentum of the ball just after the collision is same as that just before the collision
    B
    the mechanical energy of the ball remains the same during the collision
    C
    the total momentum of the ball and the earth is conserved
    D
    the total energy of theball and the earth remains the same
  • In an inelastic collision

    A
    momentum, kinetic energy and total energy are conserved
    B
    momentum, kinetic energy and total energy are not conserved
    C
    momentum and kinetic energy are conserved but total energy is not conserved
    D
    total energy and momentum are conserved but kinetic energy is not conserved.
  • In inelastic collision,

    A
    momentum, kinetic energy and total energy are conserved.
    B
    momentum, kinetic energy and total energy are not conserved.
    C
    momentum and kinetic energy are conserved but total energy are conserved but total energy is not conserved
    D
    total energy and momentum are conserved but kinetic energy is not conserved.
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