It is going backwards fast, then it is going backwards slowly.
Step-by-step explanation:
Motion is a term which is used in Physics. It is the change in the position of an object with time because of some force that is acting upon the object.
In mathematics, motion is described and defined as the and in the terms of the speed, time and the change or the displacement of an object from it's original place. This is because of the force acting upon the object.