Water in a Canal 6m wide and 1.5 m deep is flowing with a speed of 10 km/h how much area will it irrigate in 30 minutes,if 8 cm of standing water is needed?
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Answered by
3
volume of water in 1/2 hour= 6×1.5×5000
= 45000 m cube
area ×h = 45000
area× 8= 45000
area= 45000/8
area = 5625 m square
= 45000 m cube
area ×h = 45000
area× 8= 45000
area= 45000/8
area = 5625 m square
shashanksen16:
no it is right
yes standing water is 8 cm . i hurriedly thought that it is 8m
ok
Answered by
8
Hey there !!
Let l be the length , b the wide and h be the depth of the canal ,
Speed of flow of water = 10 km/hr
water flowing in canal in 30 minutes
=( 10,000× 1/2 )m
= 5000m
volume of Water flowing out in 30 minutes
=( 5000×6×1.5 )m³
= 45000m³ ....1)
volume of Water required to irrigate the field
= A×8/100 m³ ......2)
Equating 1). and. 2) , we get
A×8/100 = 45000
= A = 562500 m²
Hope this would help you !!
Let l be the length , b the wide and h be the depth of the canal ,
Speed of flow of water = 10 km/hr
water flowing in canal in 30 minutes
=( 10,000× 1/2 )m
= 5000m
volume of Water flowing out in 30 minutes
=( 5000×6×1.5 )m³
= 45000m³ ....1)
volume of Water required to irrigate the field
= A×8/100 m³ ......2)
Equating 1). and. 2) , we get
A×8/100 = 45000
= A = 562500 m²
Hope this would help you !!
:-)
plz convert m^2 to hectares... :}
1 hectare= 100×100 metre sq.
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