Question

Calculate the man’s height . (Use PE = m × g × h, where g = 9.8 N/kg.)

Answer 1

From the formula PE = mgh, find h.

Divide both sides for mg (because we have them) so we have PE/mg = mgh/mg

h = PE/mg

h = 4620 J/ (56 kg * 9,8 N/kg)

h = 4620 J / 548.8 N = 8.4 m (circa)