Treadmill

Kinematics is the study of how things move. On a treadmill, you have the ability to exercise and stay in the same place at the same time. When you exercise on a treadmill you neither move forward, or backward. The belt underneath you is what moves. You neither gain nor lose distance.  The displacement for exercising on a treadmill will always be 0, because you don’t change position, you can only change the speed or distance. You can also run or jog at constant rates because you control your speed through the belt on the treadmill and you have to keep up with the belt.