Chapter 4.1, Problem 2PP

To determine

The Draw: The diagram during the toss up the softball from hand.

Explanation of Solution

Introduction:

Free body diagram is shown below where $F_h$ is the force by hand on the softball while the ball is in touch with the hand, $F_{earth}$ is the gravitational force on the ball which is acting downward and $F_{net}$ is the net force on the ball which acts upward while the ball is in touch with the hand.

In free body diagram, while the ball is still in touch with hand, there is a force $F_h$ by hand on the ball in upward direction.

$F_{earth}$ will act always on the ball due to the gravity downward

And since the ball is in touch with the hand, the net force $F_{net}$ acts upward because hand supplies an upward force to toss up the ball.