A body weighing 200 g freely falls from a certain height. The moment it falls to the ground, its kinetic energy is 50 J.

A body weighing 200 g freely falls from a certain height. The moment it falls to the ground, its kinetic energy is 50 J. From what height does the body fall?

Given:
m = 200 g = 0.2 kg
K = 50 J
Find: h -? m
Decision :
Potential energy is converted into kinetic energy.
P = K = 50 J.
P = mgh.
h = P / mg.
[h] = J / kg * m / s ^ 2 = (kg * m / s ^ 2 * m) / (kg * m / s ^ 2) = m.
h = 50 / 0.2 * 10 = 25 (m).
Answer: 25 meters.