Physics, asked by aakashkumarboity, 1 year ago

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

PiyushPandey007: If you found my answer helpful then please mark me as Brainliest.

Answers

Answered by Technology123

here displacement is zero .
hence velocity will be zero.
because velocity is displacement/time
i.e. 0/ time=0

aakashkumarboity: the answer is 24 km/h

Technology123: vo average speed hogi

PiyushPandey007: How bro?

Technology123: bro???

Technology123: whom

PiyushPandey007: I am asking Aakash

Technology123: okk

PiyushPandey007: your answer is right

Technology123: hmm

PiyushPandey007: He is asking for the average velocity in his question and that is 0

Answered by PiyushPandey007

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

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