A spring with a constant of #7 (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?
By conservation of mechanical energy when the spring is compressed x m after collision
PE gained by the spring = Initial KE of the colliding object
m = mass=3kg
v=velocity of the object=
k = force constant=
x= compression of spring=?