Question

a car covers a distance of 200 KM from Delhi to jaipur towards west in 5hours in morning and returns to Delhi in the evening covering the same distance of 200km in same time for 5hrs. find
1) average speed
2) average velocity of car for whole journey

Answer 1

Average speed of car = total distance /total time


= 400/10= 40km/h

here average velocity = 0

Because that start point & end point is same

Answer 2

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1) Average speed=200+200/5+5

Average speed=400/10

Average speed=40km/h


2)Average velocity=DISPLACEMENT/TIME

Here we know that the displacement is 0.

Time taken is 5+5=10 hours.

so, Average velocity=0/10=0km/h


so,Average speed=40km/h

so,Average velocity=0km/h


HOPE IT HELPS YOU