How will the equations of motion for an object

Equations of motion of a uniformly accelerated motion of an object are

1. $V=u+a t$,

2. $S=u t+1 / 2 a t^{2}$,

3. $v^{2}-u^{2}=2 a S$.

When object moves with a uniform velocity, its acceleration, $a=0$. Hence equations of motion become

1. $V=U$,

2. $S=u t$,

3. $v^{2}=u^{2}$.