A wound spring provides the energy to propel a toy car across a level floor at time ti, the car is moving at a speed vi across the floor and the spring is unwinding, as shown below. At time tf, the spring has fully unwound and the car coasted to a stop.
Which statement best describes the transformation of energy that occurs between the ti and tf?
The statement that best describes the transformation of energy that occurs between ti and tf is:
The potential energy stored in the wound spring is gradually converted into kinetic energy of the toy car during its movement.