Question

which is the best example that something has kinetic energy? a. a car parked on a steep hill d. a piece of coal before its burned b. a tennis ball rolling across the court c. a picture hanging on the wall

Explanation:

Kinetic energy is the energy of motion. A car parked on a hill, a piece of coal before burning, and a picture hanging on the wall are not in motion. A rolling tennis - ball is in motion and thus has kinetic energy.

Answer:

B. a tennis ball rolling across the court