Answers

2016-01-05T22:03:03+05:30
Height = 3 m
Breadth = 40 m
length = 2km = 2000 m
time = 1 h = 60 mins
water / hour = 2000/ 60 = 100/3
Volume = l * b * h = 100/3 * 3 * 40 = 4000 m³ = 4000 * 10³ liters
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2016-01-05T22:25:34+05:30
So, in order to answer this question, let us analyse the given data
it says that the depth = 3 metres
                         width = 40 metres
and the rate of flow = 2 km per hour
( converting this into metre per second, we get rate of flow = 2*(1000/3600)=2*(5/18)= 0.55 metre per second)
now we know that volume = length *width*height
similarly, volumetric rate of flow = length*width*rate of flow
which leaves us at v=3*40*0.55= 66.67 metre cube per second.
so the amount of flow per minute would be given by
 66.67*60 = 4000 metre cube per minute
pls do let me know if the answer helped
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