Water in a river,3m wide and 1.2m deep,is flowing at the rate of 20km per hour.how much area will it irrigate in half an hour,if 10cm of standing water is desired?

Open in App

Solution

width of canal = 3 m
depth of canal = 1.2m
rate of flow of water= 20 km /hr
length of water column in 30min(1/2 Hour)= 1/2 * 20 KM
= 10KM= 10000M
VOLUME of water flown in 30min= 3m * 1.2m * 10000m
= 36000m^3
10cm= 0.1m standing water is required
therefor,
area in 30min= volume/height
=36000/0.1
= 360000m^2

Suggest Corrections

Similar questions

Water in a canal, 30 dm wide and 12 dm deep, is flowing with a velocity of 20 km per hour.How much area will it irrigate, if 9 cm of standing water is desired?

Q. Water in a canal,

30 d m

wide and

12 d m

deep is flowing with a speed of

20 k m

per hour. How much area will it irrigate in

30 m i n

9 c m

of standing water is desired? (

10 d m = 1 m)

Q. Water in a canal 30 dm wide and 12 dm deep, is flowing with a velocity of 100 km per hour. How much area will it irrigate in 30 minutes if 8 cm of standing water is desired?

Q. Water in a canal, 30 dm wide and 12 dm deep, is flowing with a velocity of 20 km per hour. How much area will it irrigate, if 9 cm of standing water is densired?

Q. Water in a canal,

30 d m

wide and

12 d m

deep, is flowing with a velocity of

20 k m / h

. How much area will it irrigate in

30

min, if

9 c m

of standing water is desired?

Join BYJU'S Learning Program