Question

5. Mohan travels at 20m/s from home to market and returns back at 25m/s. Find his average velocity for the entire journey.

Answer 1

Explanation:

Because average velocity=total displacement/time taken

And here initial and final point is same so

There is no displacement=0

Hence avg. Velocity=0/T

Velocity=0

Answer 2

Answer:

22.22m/s

Explanation:

t1=s/20

t2=s/25

therefore total time = t1+t2= s/20+s/25=5s+4s/100=9s/100

total distance= s+s = 2s

average speed= total distance /total time taken

                             2s/9s/100=2s×100/9s=200/9 = 22.22 m/s

Hope its helpful!!!