Question

If the ball has a mass of 0.02 kg and rebounds to a height of 0.75 m. How much GPE remains in the ball?

Answer 1

Explanation:

Gravitational Pull (or force exerted by the earth on all bodies) is constant on all masses and is given by 10N/kg (Newton per Kilogram)

Hence, at the height of rebound,

Gravitational Potential Energy, GPE = mgh

where m = mass

g = gravity pull

h = height

GPE = 0.02 x 10 x 0.75

= 0.15 joules