A tennis ball of mass 50g is hit against a wall. It hits the wall going right at 5 ms-1 and rebounds to the left at 4 ms-1, changing its momentum by 0.45 kg m/s left. The ball is in contact with the wall for 0.2 s and experiences an average force of 2.25 N left (applied by the wall).What is the force of the ball on the wall?Question 3Select one:
Question
A tennis ball of mass 50g is hit against a wall. It hits the wall going right at 5 ms-1 and rebounds to the left at 4 ms-1, changing its momentum by 0.45 kg m/s left. The ball is in contact with the wall for 0.2 s and experiences an average force of 2.25 N left (applied by the wall).What is the force of the ball on the wall?Question 3Select one:
Solution
According to Newton's third law of motion, for every action, there is an equal and opposite reaction. This means that the force exerted by the ball on the wall is equal in magnitude and opposite in direction to the force exerted by the wall on the ball. Therefore, the force of the ball on the wall is 2.25 N to the right.
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