Question: A 140 g ball with speed 7.8 m/s strikes a wall perpendicularly and rebounds in the opposite direction with the same speed. The collision lasts

A 140 g ball with speed 7.8 m/s strikes a wall perpendicularly and rebounds in the opposite direction with the same speed. The collision lasts 3.80ms. What are the magnitudes of the

(a) Impulse and

(b) Average force on the wall from the ball?

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a The magnitude of the impulse is equal to the change in momentum J mv mv 2mv 20140 ... View full answer

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