Shown here is a speed time Speed versus Time graph for a low-friction cart that was given a quick push to get it started. While it was moving along the track, Speed it was given a quick gentle backwards tap and a short time later someone stopped it withtheirhand Time Use a colored pencil to show where on this graph you think someone's hand was in contact with the cart. Use a different color to show where you think the cart's kinetic energy was changingrieflyexplainyourchoiceforboth