# 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 #1 m/s# collides with and compresses the spring until it stops moving. How much will the spring compress?

##### 1 Answer

Mar 22, 2016

#### Explanation:

By conservation of mechanical energy when the spring is compressed fully after collision

PE gained by the spring = Initial KE of the colliding object

where

m = mass=3kg

v=velocity of the object=

k = force constant=

x= compression of spring=?