What is the mass of a person if at a height of 10 m he has a potential energy of 5 kJ?

Initial data: h (height at which the person is) = 10 m; Ep (potential energy possessed by the human body at a given height) = 5 kJ = 5 * 10 ^ 3 J.

Reference data: g (acceleration due to gravity) = 10 m / s2.

We determine the mass of a person’s body from the formula of potential energy: En = m * g * h and m = En / (g * h).

Let’s make a calculation: m = 5 * 10 ^ 3 / (10 * 10) = 50 kg.

Answer: The body weight of a person is 50 kilograms.