Physics, asked by Devanshidixit21, 1 year ago

A train travels 20km at a uniform speed of 60km/h and the next 20km at a uniform speed of 80km/h calculate its average

Answers

Answered by Shree1611

8

avg is total distance travel/total time taken so in this case total time is (1/3)+(1/4) =7/12 hrs
so avg = (40×12)/7 = 68.571 Km/h.

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