Question

lets consider a scenario of a roller coaster ride. as the roller coaster at the top begins to descend, it loses height, which means its potential energy decreases and kinetic energy starts increasing and reaches its maximum value. by using the above scenario, which statement best compares potential and kinetic energy? objects always have more potential energy than kinetic energy. kinetic energy increases and potential energy decreases when the velocity of an object increases. only potential energy decreases when an objects height increases. objects always have more kinetic energy than potential energy.

Explanation:

The potential energy of an object is related to its height ($PE = mgh$) and kinetic energy is related to its velocity ($KE=\frac{1}{2}mv^{2}$). As the roller - coaster descends, its height $h$ decreases (so $PE$ decreases) and its velocity $v$ increases (so $KE$ increases).

Answer:

B. Kinetic energy increases and potential energy decreases when the velocity of an object increases.