Question

A rock has a mass of 45 kg and is at a height of 40 m. What is its potential energy?

Answer 1

Answer:

POTENTIAL ENERGY = MGH

GIVEN,

MASS (M) =45 KG

G = 10M/S

HEIGHT (H) = 40m

SO,

PE = 45 x10x40 = 18000 J.

Answer 2

Answer:

18000J

Explanation:

p.e=mgh

g=10m/s

p.e=45 x 40 x 10=18000J