# If the length of a #65 cm# spring increases to #94 cm# when a #5 kg# weight is hanging from it, what is the spring's constant?

##### 1 Answer

Aug 18, 2016

#### Answer:

Draw a free body diagram first

#### Explanation:

Let's sort this through.

A

where

and

*We can ignore the (-) sign in this case because that just indicates the force is a restoring force.

Setting up the forces to equal each other, we get: