F the kinetic and potential energy in a system are equal, then the potential energy increases. What happens as a result? Total energy increases.
Stored energy decreases.
Energy of motion decreases.
Total energy decreases.

What do you think car designers do if the damage caused by a crash test is too severe?

Aball horizontally thrown from a cliff at 8m/s

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.