When a golf ball is dropped to the pavement, it bounces back up. (a) Is a force needed to make it bounce back up? (b) If so, what exerts the force?
We have examine the motion of golf ball at the instant it touches the pavement.
Step 1 of 3
Newton’s first law: Every boy continues in its state of rest or of uniform motion unless it is compelled by an external force. Newton’s third law: For every action, there is an equal and opposite reaction. Step 2 of 3(A) Yes, it is necessary for a force to act on it, because the ball changes direction as per Newton’s first law,and also it accelerates therefore must be a force acting on it.