Physics, asked by monuthamke111, 1 year ago

a train covers the first half of the distance between two station at a speed of 40 km/h and the other half at 60 km/h then its average speed is :

Answers

Answered by tushaarcl
5

Let the total distance be 2x .

Time taken to cover first half = x/40 hours

Time taken to cover second half= x/60 hours

Average speed = Total distance/Total time

= 2x/ (x/40 + x/60)

= 2x / (5x/120)

= 240 / 5 = 48 km/h

Answered by aieshaogarro16
2

Answer:

Let the total distance be 2x .

Time taken to cover first half = x/40 hours

Time taken to cover second half= x/60 hours

Average speed = Total distance/Total time

= 2x/ (x/40 + x/60)

= 2x / (5x/120)

= 240 / 5 = 48 km/h

Explanation:

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