You hold a softball in the palm of your hand and toss it up. For each of the following situations, specify the system and draw a motion diagram and a free-body diagram.
Label all forces with their agents, and indicate the direction of the acceleration and of the net force. Draw vectors of appropriate lengths. Ignore air resistance.

a. After the softball leaves your hand, it rises, slowing down.
b. After the softball reaches its maximum height, it falls down, speeding up.
c. You catch the ball in your hand and bring it to rest.