Question

A roller coaster with a mass of 20kg sits at the top of a 30 m high hill. What is the Potential energy of the roller coaster?

(Formula: PE=mgh)
(g= 9.8m/s)

Answer 1

The answer is 5880 J

Step-by-step explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

We have

PE = 20 × 30 × 9.8

We have the final answer as

5880 J

Hope this helps you