Question

An object with a mass of `4 kg` is hanging from a spring with a constant of `8 (kg)/s^2`. If the spring is stretched by `8 m`, what is the net force on the object?

Answer 1

`F_n=-24,76 N`

Explanation:

`G=m*g=4*9,81=39,24 N "this is object's weight "`
`F=-k*Delta x`
`F=-8*8=-64 N "stretched force on spring"`
`F_n=-64+39,24`
`F_n=-24,76 N`