Question

If a spring has a constant of `4 (kg)/s^2`, how much work will it take to extend the spring by `94 cm`?

Answer 1

The work is `=1.77J`

Explanation:

The work done is equal to the the potential energy stored in the spring

`W=1/2kx^2`

The spring constant is `k=4kgs^-2`

The extension is `x=0.94m`

The work is

`W=1/2*4*0.94^2=1.77J`