Question

Water in a canal, 6 m 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? pls answer this ASAP!

Answer 1

Hey friend!!


Here's ur answer...


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Width of canal = 6 m.
Depth of canal = 1.5 m.
Length in 60 minutes = 10000 m.
Length in 1 min = 10000/60
Length in 30 minutes = 10000 × 30/60
= 5000 m.

So, volume = 6 × 1.5 × 5000
= 45000 m³

So, volume of water = area of land × height

45000 = area × 0.08
Area = 45000 × 100 / 8

=562500 m².



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Hope my calculations are correct..



Thank you :) :)))