Question

A roller coaster is at the top of a 72 m hill and weighs 966 N. the coaster ( at this moment) has potential energy. Calculate it.

Answer 1

Potential energy (PE ) = mgh

Where:

m= mass

g= gravity

h= height = 72m

m*g = weight = 966N

PE = 966 N x 72m = 69,552 J