Question

a car moves a distance of 30 km at a uniform speed of 40 km/hr and next 30 km at a uniform speed of 20 km/hr. find the average speed.​

Answer 1

Answer:

Answer : 26.67 km/hrs

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Answer 2

Answer:

Explanation:

Since the distances are same

Average velovity v = 2v₁ v₂/(v₁+v₂)

                               = 2 x 40 x 20 / (40 +20)

                               = 2 x 40 x20 /60

                               = 80/3 km/h

                               = 26.67 hm/hr