potential and kinetic energy select the point where the roller coaster cars have the lowest potential energy.
potential and kinetic energy select the point where the roller coaster cars have the lowest potential energy.
Answer
Explanation:
Step1: Recall potential - energy formula
The gravitational potential energy formula is $U = mgh$, where $m$ is mass, $g$ is gravitational acceleration, and $h$ is height. For a given roller - coaster car (constant $m$) and a constant $g$ on Earth, potential energy depends only on height $h$.
Step2: Identify the lowest - height point
Looking at the roller - coaster track, point B has the lowest height among points A, B, and C.
Answer:
B