Can any1 send me the answer for this?

Use the table to answer question 22 23 and 24.

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?