A river is 50m wide and 10m deep travels with a speed of 2m per socond how much time will river take to fill a lake which is square in shape ,1km×1km and 100m deep.
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Answer: total taken time is 27.78 hr
Step-by-step explanation:
Total flow of the river is 50×10×2= 1000 cb m/s
Lake's volume is 1000×1000×100 = 10^8 cb m
Total time is 10^8/10^3 = 10^5 sec = 10^ 5/3600 hr =27.78 hr
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