Question

a train travels with a speed of 60km/h from station A to B and comes back witrh speed 80km/h from B to A. find
average speed
average velocity of train

Answer 1

Answer:

Can you tell me the formula of average speed

Answer 2

Total distance = x + x = 2x

Time 1 = x / 60

Time 2 = x/ 80

Average speed = Total distance / Total time

V = 2x / ( x/60 + x/80 )

V = 2x / (7x / 240)

V = (68.57) Km/hr

Since now displacement = 0

So average velocity = 0 Km/he

So , Average speed = 68.57 Km/hr

Average velocity = 0 Km / hr.

Thanks.

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