Question

Explain acceleration as it relates to a baseball being thrown through the air.

Answer 1

Assuming there is no air resistance.

After the ball leaves the hand, the acceleration remains constant. i.e. it is 9.8 m/sec^2 directed vertically downwards, and stays at this value until the ball is caught.

This is rather different to what happens to the velocity and displacement during this journey

Answer 2

Acceleration of the baseball as it is being thrown is the rate at which the velocity of the ball is changing