Wyjaśnienie:
m= 50kg
Ep= 10kJ = 10 000J
g = 10m/s^2
Ep = m × g × h
h = Ep/(m×g)
h = 10 000J ÷ (50kg × 10m/s^2)
h = 10 000J ÷ 500N = 20m
