hello, The other day in class i completed a lab colliding two cars into each other 3 times. The first time velcro was attached to the cars so they stuck together after the collision, the second time a spring was attached to one of the cars and the third time it was just the plain bumpers. I undertstand that the spring bumper is an elastic collision because energy is conserved. And that the velcro is a completely inelastic collision because the kinetic energy is shared and the objects stick together after the collisions. And finally, that the hard bumper is an inelastic collision because kinetic energy is not conserved. Well, my question is does anyone know what these graphs would look like? We found the graphs while the lab was done but i do not have the program on my home computer. I already tried google but i cannot seem to find them. Im just looking for the basic graph outline.. Thanks for any help.