Question

select the correct answer. erica throws a tennis ball against a wall, and it bounces back. which force is responsible for sending the ball back to erica? a. the force that the ball exerts on the wall b. the frictional force between the wall and the ball c. the acceleration of the ball as it approaches the wall d. the normal force that the wall exerts on the ball

Explanation:

According to Newton's third - law, when the ball hits the wall, the wall exerts a normal force on the ball which sends it back. The force the ball exerts on the wall is the action force and the normal force from the wall on the ball is the reaction force that causes the ball to bounce back. Frictional force acts parallel to the surface and is not responsible for sending the ball back. Acceleration is a result of a net - force, not the force directly responsible for the bounce.

Answer:

D. the normal force that the wall exerts on the ball