A ball on an air track is attached to a compressed spring (at x=0 the spring is unstretched) as shown in the animation (position is in meters and time is in seconds).
Which area properly represents the work done by the spring during the animation (assume v=0 at the beginning and end of the animation)? Start
Graph 3.
See Giancoli-PA: 6-3, Giancoli-SE: 7-4.
Physlet problem authored by Mario Belloni and Wolfgang Christian.