Question

a student is on a rollercoaster. where is potential energy the greatest? point a point c point b both a and c

Explanation:

Step1: Recall potential - energy formula

The gravitational potential energy formula is $U = mgh$, where $m$ is mass, $g$ is the acceleration due to gravity, and $h$ is height.

Step2: Analyze heights at different points

Given that $m$ and $g$ are constant for the student on the roller - coaster, potential energy depends on height. Point B is the highest point among A, B, and C.

Answer:

C. Point B