Question

An object with a mass of `7 kg` is hanging from a spring with a constant of `3 (kg)/s^2`. If the spring is stretched by `1 m`, what is the net force on the object?

Answer 1

`71.67~~71.7~~71~~70N` (choose whichever seems more appropriate)

Explanation:

`SigmaF=F_s+F_l`

`F_l=mg=7*9.81=68.86N`

`F_s=kDeltax=5*1=3N`

`SigmaF=68.67+3=71.67N`