Question

1. What is the potential energy of a 8 kg ball that is at a height of 20 m?


2. What is the potential energy of a 3 kg ball that is on the ground?

3. What is the potential energy of a 5 kilogram ball that is 24 m from the ground?

PLEASE HELP 8 grade

Answer 1

Answer:

1. 1568 J

2. 0 J

3. 1176 J

Explanation:

PE = mgh

(PE = Potential Energy) = (m = mass)(g = gravitational force which is 9.8)(h = height)

1. (3)(9.8)(20) = 1568 J

2. PE = (3)(9.8)(0) = 0 J

3. (5)(9.8)(24) =  1176 J