A man travels 200 km with the speed of 40 m/s and next 50 km with the speed of 10 m/s . Find the average speed of man.
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1 m/s = 18/5 KM/h
40 m/s=40*18/5=144 KM/h
10 m/s = 10*18/5=36 KM/h
average speed = total distance / total time taken = (200 +50)/(200/144 + 50/36) =250/(400/144) = 90 KM/ h = 25 m/s
40 m/s=40*18/5=144 KM/h
10 m/s = 10*18/5=36 KM/h
average speed = total distance / total time taken = (200 +50)/(200/144 + 50/36) =250/(400/144) = 90 KM/ h = 25 m/s
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