If the length of a 37 cm spring increases to 73 cm when a 4 kg weight is hanging from it, what is the spring's constant?

Jul 12, 2017

The spring constant is $= 108.9 n {m}^{-} 1$

Explanation:

The mass is $= 4 k g$

The extension is $\Delta x = 0.73 - 0.37 = 0.36 m$

The spring constant is

$k = \frac{F}{\Delta x} = 4 \frac{g}{0.36} = 108.9 N {m}^{-} 1$