# 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 #6 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

Apr 9, 2018

3.7m

#### Explanation:

Kinetic energy of the object just before hitting the spring:

Spring potential energy:

Where k is the spring constant and x is the spring change in length.

So the spring will move 3.7m.