Question

1. What is the gravitational potential energy of a 150kg object suspended 5m above the earth’s surface? (g=10m/s2)

Answer 1

m = 150Kg

g = 10m/s2

∆h = 5m

Gravitational potential energy (GPE) = mg(∆h)

= 150 × 10 × 5

= 7.5×10^3 J