# A spring with a constant of #4 (kg)/s^2# is lying on the ground with one end attached to a wall. An object with a mass of #3 kg# and speed of #3 m/s# collides with and compresses the spring until it stops moving. How much will the spring compress?

##### 1 Answer

Mar 12, 2016

#### Explanation:

**This is a routine case for using law of the conservation of energy**