Question

A body goes from a to b with a velocity of20m\s and comes back from b to a with a velocity of 30.find average velocity

Answer 1

Vavg = (Vf+Vi)/2
where Vavg = average velocity
Vf = final velocity
VI = initial velocity
Vf = 30ms^-1
Vi = 20ms^-1
( Vf +Vi) /2 =( 30m/s + 20m/s)/2 = (50m/s) /2= 25m/s


Ans: 25m/s

Hope you understand