Energy — Question 6

Given:
Gravitational potential energy (U) = 1.5 x 10⁴ J = 15000 J
Weight = 150 kgf = 150 x 10 = 1500 N
height h = ?

U = mgh

15000 = 1500 x h

h = $\dfrac{\text{15000}}{\text{1500}}$

h = 10 m

So height of the box = 10 m.