Question

on a roller coaster, where is maximum potential energy?
1 at the bottom of a big hill
2 at the top of a big hill
3 when going around a corner
4 when going upside down

Explanation:

Potential energy (PE) in a gravitational field is given by \( PE = mgh \), where \( m \) is mass, \( g \) is acceleration due to gravity, and \( h \) is height. Higher height means more PE. At the top of a big hill, height (\( h \)) is maximum, so PE is maximum. Other options (bottom of hill, around corner, upside down) have lower height or involve kinetic energy/other forces, not maximum PE.

Answer:

1. At the top of a big hill