How would the acceleration of a chain of three shopping carts compare with the acceleration of a single cart if the same force acted on both?
a. 1/3 as much the single
b. 1/2 as much the single
c. 3 times as much the single
d. 2 times as much the single

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?