# If the length of a #23 cm# spring increases to #96 cm# when a #5 kg# weight is hanging from it, what is the spring's constant?

##### 1 Answer

Mar 7, 2018

I got

#### Explanation:

We can use Hooke's Law:

Newton's Second Law...

and the diagram:

At equilibrium:

using our data and from our choice of axes (changing in meters):