A spring with a constant of #9 (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 #5 m/s# collides with and compresses the spring until it stops moving. How much will the spring compress?
The object has kinetic energy, and assuming that the motion takes place horizontally, all this is given to the spring which stores it as Elastic Potential Energy
of course we assuming that the natural length of the spring