Power output (P) is work (W) divided by time (t): P = W/t
A work (W) is a product of a force (F) and a
distance (d): W = F · d
Since the force is a product of mass and
acceleration: F = m · a
then work would be: W = m · a · h
P = W/t W = m · a · h P = m · a · h / t
We have: P = ? m = 1000 kg a = 9.81 m/s² (gravitational acceleration on the Earth) h = 10 m t = 5s
P = m · a · h / t = 1000 kg · 9.81 m/s² · 10 m / 5 s = 19620 Watt = 19.62 kWatt
