This is a really nice car. OOps, my mistake, its a van. The van is traveling at a speed of 20 miles per hour.. or I hope it is because if its going any faster, it will be speeding and breaking the law. Speed is a big factor in Kinematics. If an object is thrown up in the air and caught at the same point at which the object is thrown, then the speed will stay the same throughout. By finding out the time and the initial velocity of a car, you can find out the acceleration and the velocity of a car when it was traveling.