A car travels from A to B at a speed of 20 km/h and returns at a speed of 30 km/h . What is the average velocity
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Answered by
4
here displacement is zero .
hence velocity will be zero.
because velocity is displacement/time
i.e. 0/ time=0
hence velocity will be zero.
because velocity is displacement/time
i.e. 0/ time=0
the answer is 24 km/h
vo average speed hogi
How bro?
bro???
whom
I am asking Aakash
okk
your answer is right
hmm
He is asking for the average velocity in his question and that is 0
Answered by
3
Velocity is = displacement/time or V = D/t
From point A to point B and back to point A the displacement becomes zero as the car returns back to it's original position.
then Velocity (V) = 0
Since you actually want the average speed,
The answer is:-
If the distance from point A to point B is X,
then the total distance covered is 2X
Time = distance/speed,
then total time = X/30+X/20
Average Speed = total Distance/total time
Average Speed = 2X/(X/30+X/20)
Average Speed = 2X/(X/12)
Average Speed = 2*12 => 24km/h
From point A to point B and back to point A the displacement becomes zero as the car returns back to it's original position.
then Velocity (V) = 0
Since you actually want the average speed,
The answer is:-
If the distance from point A to point B is X,
then the total distance covered is 2X
Time = distance/speed,
then total time = X/30+X/20
Average Speed = total Distance/total time
Average Speed = 2X/(X/30+X/20)
Average Speed = 2X/(X/12)
Average Speed = 2*12 => 24km/h
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