Question

If a spring has a constant of `3 (kg)/s^2`, how much work will it take to extend the spring by `83 cm`?

Answer 1

The work is given by the formula `W= 1/2kx^2`
here:
`k= "spring constant" = 3kg/s^2`
`x= "displacement" = 83cm = 83/100m= 0.83m`

substituting the values in the formula we get
`W= 1/2 ( 3) . (0.83 )^2 J`
`W= 1.03 J`