Answer to Question #280706 in Physics for JANZEN

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.

Expert's answer

The initial momentum of the ball is

"p_i=mv=0.75\u00b725.5=19.1\\text{ kg}\u00b7\\text{m\/s}."

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