1. The problem statement, all variables and given/known data 2 trucks, one with twice as much mass than the other, are at rest on separate tracks. A man pushes each truck for 5 seconds. If you ignore friction and assume equal force is exerted on both trucks - which truck will have the most kinetic energy afterwards? 2. Relevant equations KE=1/2mv^2 3. The attempt at a solution Straight away I would say that the lighter truck would have more kinetic energy as it would take less force to move it, but as friction is being ignored and there is an equal force on both of them this stumps me, one of the options is that there is not enough information to answer the question but I feel like because friction is being ignored and there's equal force there is a really simple answer to this. I would appreciate someone steering me in the right direction so I can find the answer out for myself. Thanks!