Question

A body of mass 0.2 kg falls from a height of 10 m to a height of 6 m above the ground level. If 'g' = 10 ms⁻², the loss of gravitational potential energy is:

Options

• 8.0 J

• 80.0 J

• 0.8 J

• 12 J

Answer 1

8.0 J

Explanation:

The body falls through a height of 10 − 6 = 4 m.

The loss in gravitational potential energy is mgΔh = 0.2 × 10 × 4 = 8.0 J