When a tennis player practices by hitting a ball against a wallwhich of newton's laws of motion is the player making use of?

Answer 1

When a tennis player practices by hitting a ball against a wall the player is making use of Newton's Third Law. According to Newton's Third Law, whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object, These two forces are called action and reaction forces. Back to the question, the tennis player is making use of Newton's Third Law because when he is hitting a ball against the wall, he is exerting a force. However without the wall exerting an equal and opposite force on the ball, it would be impossible for the ball to bounce back and the player to continue hitting the ball against the wall which is why the player is making use of Newton's Third Law.