S6: Two students were discussing their ideas about how the speeds of objects change when they are involved in a contact push/pull interaction. I think the speed of an object only changes while the interaction is actually happening. As soon as contact I agree that the speed changes because of the with the other object in the interaction is lost, the speed interaction between the objects, but I think the stops changing. When we launched the cart with our interaction only starts the speed changing, and the hand, as soon as contact was lost between them, the cart change continues after contact is lost. I think that stopped speeding up. after the cart lost contact with the hand, it continued to speed up, at least for a short period of time. EM-35