Find the energy possessed by an object of mass 10 kg when it is at a height of 6 m above the ground. Given, g = 9.8 m s–2 .

Solution:
Mass of the object, m = 10 kg,
displacement (height), h = 6 m, and
acceleration due to gravity, g = 9.8 m s^–2
Potential energy = m g h
= 10 kg × 9.8 m s^–2 × 6 m
= 588 J.
The potential energy is 588 J.