A ball hits a wall horizontally at 8.0 m/s-1. It rebounds horizontally at 4.4 m s-1. The ball is in contact with the wall for 0.040 s. What is the acceleration of the ball?

Initial velocity, u=8m/s

Final velocity ,v=-4.4m/s (the ball rebounds in opposite direction)


Time, t = 0.040 s



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