Graph : http://img354.imageshack.us/my.php?image=physicslp1.png or http://www.turboimagehost.com/p/766378/physics.JPG.html Questions: Determine its average velocity between the following times. 1. t = 25.0 s and t = 30.0s 2. t = 35.0 s and t = 50.0 s 3. The attempt at a solution average velocity = overall displacement / overall time 1. 6m/5 sec = 1. m/s 2. 10 m / 15 s = 2/3 ms My teacher uses on online homework program called Webassign, and both of these showed up as wrong. I don't know why. If anyone could help me that would be awesome.