Answer: 7.3 kJ
Explanation:
Work = gravitational potential energy
Amount of work done to lift the box off the ground is stored in the form gravitational potential energy.
W = m g h
where m is the mass = 62 kg
g is the acceleration due to gravity = 9.81 m/s²
h is the height = 12 m
W = 62 kg × 9.81 m/s² × 12 m = 7298. 6 J = 7.3 kJ
