Water in a canal 6m wide and 1.5m deep is flowing with a speed of 10km/hr.
How much area will it irrigate in 30min,if 8cm of standing water is needed?
Volume of the water coming out in 1 hour of 6 m wide and 1.5 deep with speed of 10 km /hr (speed = 10*1000 m/hr)
therefore the volume of the water coming out in 30 min
let the area irrigated be .
standing water height be h = 8 cm = 8/100 = 0.08 m
therefore
since 1 hectare = 10000 sq m
thus the area irrigated = 56.25 hectare
hope this helps you.