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.

multiple

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000