The spring with a stiffness of 30 N / m was stretched by 0.04. what is the potential energy of the spring?

The potential energy of the spring can be calculated using the formula:

Ep = (k * ∆l²) / 2, where Ep is the potential energy of the spring (J), k is the stiffness of the spring (k = 30 N / m), ∆l is the amount of spring deformation, elongation (∆l = 0.04 m ).

Let’s calculate the potential energy of the spring:

Ep = (k * ∆l²) / 2 = (30 * 0.04²) / 2 = 0.024 J.

Answer: The potential energy of the spring is 0.024 J.