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A heavy rifle initially at rest fires a light bullet.

Which of the following statements about these objects is true?

A. The bullet and rifle both gain the same magnitude of momentum.
B. The bullet and rifle are both acted upon by the same average force during the firing.
C. The bullet and rifle both have the same acceleration during the firing.
D. The bullet and the rifle gain the same amount of kinetic energy.

  • Physics - ,

    A. is correct
    B. would also be correct, except that the equal-magnitude forces are in opposite drections

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