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A ball bounces on the ground. How do the ball and the ground act on each other?

User Valerii
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Step-by-step explanation:

It will continue to fall under the influence of gravitational acceleration, but now, a normal force from the ground surface, opposing the force due to gravity, will act on the ball.This all means that the ball is pushing on the ground with a force greater than its own weight, so acceleration must point upward.

User Mauro Stepanoski
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