Question

If the length of a `46 cm` spring increases to `57 cm` when a `8 kg` weight is hanging from it, what is the spring's constant?

Answer 1

`"713 N/m"`

Explanation:

`F = kDeltax`

`k = F/(Deltax) = (mg)/(Deltax) = ("8 kg × 9.8 m/s"^2)/("0.57 m - 0.46 m") = "713 N/m"`