A ball falls to the ground from height h and bounces to height h\', momentum is

Question

A ball falls to the ground from height h and bounces to height h', momentum is conserved in the value of the ball-earth system no matter what height h' it reaches. Only if h' h. Only if h' greaterthanorequalto h. The value of the momentum of a system is the same at a later time as at an earlier time if there are no collisions between particles within the system. inelastic collisions between particles within the system. changes of momentum of individual particles within the system. internal forces acting between particles within the system. external forces acting on particles of the system. Two 0.20-kg balls, moving at 4 m/s east, strike a wall. Ball A bounces backwards at the same speed. Ball B stops. Which statement correctly describes the change in momentum of the tw balls? |delta p bar_B| |delta p^bar_A| -p bar_B = -p bar_A -p bar_B > -p bar_A

Explanation / Answer

The correct answers are as following

10.  the answer is (b).

11.  The answer is (b), (c), (d), (e)

12. The answer is (a)

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