Chapter 4, Problem 58A

To determine

The free body diagram of the baseball when it hit the bat.

Explanation of Solution

The free body diagram of the baseball when it is hit by the bat is shown below-

Here, the black dot represents the baseball. When the ball is hit by bat, the forces acting on the ball are weight of ball (mg) and applied force by the bat on the ball ( $F_{bat}$ ). The weight of ball directed downwards, and the direction of force is along horizontal. The motion of the ball is along the horizontal, so the magnitude of the force ( $F_{bat}$ ) is the greater than the magnitude of weight of ball (mg).