Why average velocity = (u+v)/t
and velocity = Displacement/time
Whats the difference??

Question

Why average velocity = (u+v)/t 
and velocity = Displacement/time
Whats the difference??

kropot72 · Answer

Your first equation relates only to the condition of constant acceleration or deceleration.
Your second equation will give the average speed without conditions regarding acceleration or deceleration during the movement.

anonymous · Answer

average velocity is the average of velocity between two time intervals

anonymous · Answer

@kropot72 - so you mean, if u is given zero then I should use the second equation?

kropot72 · Answer

@jahanvi The relation $$v(average)=\frac{v _{0}+v}{2}$$
is true only if the acceleration is constant. In this case the graph of v versus t is a straight line. In all other cases the curve of v versus t is not a straight line.

anonymous · Answer

Thanks alot buddy! :)

kropot72 · Answer

You're welcome :)