explain motion equations

Equations of motion are equations that describe the behavior of a system (e.g., the motion of a particle under an influence of a force as a function of time. We can use the Equations of Motion to calculate the speed of an object under different circumstances. They are

1.v=u+at;

2.v^2 -u^2 =2as

3.s= ut +1/2 at^2

The important point to remeber while applying these equations is that these apply only if the body has constant acceleration. the equations do not hold for varying acceleration.