Question

A canal is 540 cm wide and 180 cm deep the water in the canal is flowing at the speed of 25 km per hour how much area will be will it irrigate in 40 minutes if 10 cm of standing water is desired.​

Answer 1

Answer: irrigation area is 56.25 hectares

Step-by-step explanation:

= The Volume of the water coming out in 1 hour of 6 m wide and 1.5 deep with speed of  (Speed = 10 * 1000mhr^-1 )

= 6 * 1.5 * 10000

= 90000 m^3

Therefore , the volume of the water coming out in 30 min

= 90000 * 30/60

Let the irrigated area be x m^2

standing water height be h = 8 cm = 8/100 = 0.08 m

Therefore , x * 0.08 = 45000 or x = 45000/0.08 = 5,62,500 m^2

since 1 hectare = 10000 sq.m

Thus , the irrigated area is 56.25 hectare .

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Answer 2

Answer:

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Step-by-step explanation:

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good evening