Question

The body travels a distance s1 with velocity v1 and s2 with velocity v2 in same direction. Calculate average velocity of body

Answer 1

Avg. Vel = Total displacement/Total time

=s1+s2/t1+t2

But we aren't given time. Instead, velocity is given..So, as we know, time=displacement/velocity

Avg. Vel =s1+s2/(s1/v1+s2/v2)