Which of the following objects has the greatest kinetic energy
a-a baseball flying through the air at 90 mph
b- a baseball flying through the air at 45 mph
c- a baseball flying through the air at 20 mph
d-a baseball sitting on the ground

A

Explanation:

Kinetic energy is the energy of an object that is moving, so D is immediately out as it is potential energy. A baseball flying at 90 mph has the greatest amount of kinetic energy because it has a higher speed.

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