D. How long will it take you and 4 friends to paint the fence?

The kinetic energy of the baseball is 306.25 joules.

Explanation:

SInce the baseball can be considered a particle, that is, that effects from geometry can be neglected, the kinetic energy (), in joules, is entirely translational, whose formula is:

(1)

Where:

- Mass, in kilograms.

- Speed, in meters per second.

If we know that and , then the kinetic energy of the baseball thrown by the player is:

The kinetic energy of the baseball is 306.25 joules.