Amoving cart hits a spring, traveling at 5.0 m/s at the time of contact. at this instant the cart is motionless by how much is the spring compressed

This state of motionlessness occurs because all of the kinetic energy in the car is absorbed by the spring in the form of elastic potential energy. The mathematical representation is:
1/2 mv² = 1/2 kx²
25m = kx², where m is the mass of the cart, k is the spring constant and x is the spring's extension.

Simple harmonic motion wind energy circulation best answer from the choices