A spring with a constant of 2 (kg)/s^2 is lying on the ground with one end attached to a wall. An object with a mass of 8 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
Feb 12, 2016

x=2 m

Explanation:

E_k=1/2*m*v^2 " Object's kinetic energy"
E_k=1/2*8*1^2
E_k=4J
"the kinetic energy of object turns the potential energy on spring"
E_p=1/2*k*Delta x^2" Potential energy on spring"
E_p=1/2*2*Delta x^2
E_p=Delta x^2
E_p" must be equal to " E_k
4=Delta x^2
x=sqrt 4
x=2 m