Question #280706

A ball of mass 0.75 kg with speed 25.5 m/s collides with a wall and bounces back with a speed of 15.5 m/s. Consider that the motion is in a straight line or in one dimension.


1
Expert's answer
2021-12-17T18:15:34-0500

The initial momentum of the ball is


pi=mv=0.75⋅25.5=19.1 kg⋅m/s.p_i=mv=0.75·25.5=19.1\text{ kg}·\text{m/s}.


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