car covers a certain distance going at a speed of 60 kmph and returns to the starting point at a speed of 40 kmph. Find the average speed for the whole journey.
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Answer:
answer is 0
Explanation:
average velocity=total displacement/total time
a.v=0/total time taken
=0
displacement is zero because car return to its starting point
shantannu2003:
I think you was doing calculation
the formula is 100% correct
2v1×v2/v2+v1 ??
v2 v2??
48km/hr is correct answer or not?
don't know
that is iit question
sorry I can not explain you more but i am completely sure that this is the correct answer of your question
bye
are u boy
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