Question

The gravitational potential energy stored in a box of weight 150 kgf is 1.5 $\times {10}^{4}J$. Find the height of the box. Take 1 kgf = 10 N.

Answer 1

Gravitational potential energy U = mg x h
1.5 × 10⁴ J = (150 kgf) × h
1.5 × 10⁴ J=(150 × IO N) × h