Responses
Both speed and kinetic energy are at their lowest values.
Both speed and kinetic energy are at their lowest values.
Both speed and kinetic energy are at their greatest values.
Both speed and kinetic energy are at their greatest values.
Speed is at its lowest value, which kinetic energy is at its highest value.
Speed is at its lowest value, which kinetic energy is at its highest value.
Speed is at its highest value, while kinetic energy is at its lowest value.
1 answer
Just before the ball hits the ground, both speed and kinetic energy are at their greatest values. As it falls, the speed of the ball increases due to the acceleration of gravity, and since kinetic energy is calculated as \( KE = \frac{1}{2} mv^2 \), the increase in speed leads to an increase in kinetic energy.
So, the correct response is:
Both speed and kinetic energy are at their greatest values.
