Water is pouring from a cylindrical pipe of radius 3.5 m at the rate of 100 litre per minute. Find the volume of water poured from that pipe in 2 hours.
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Answered by
1
Answer:
100 × 120 ( 2 hours)
= 12000 litres
Answered by
2
Answer:
GIVEN : The inner radius of tap 0.75 cm
The water flows at the rate of 7 m per second
Requirement : Vol of water in Litres delivered by the pipe in an hour
Area of cross section =(22*0.75 *0.75 )/7
Vol of water delivered per second = (22*0.75 *0.75*700 )/7 = 1237.5 cm3 [since 7m = 700cm]
1 hour = 60* 60 = 3600 seconds
therefore , water delivered by the pipe in a hour= 1237.5 cm3 * 3600 = 4455000 cm3
1 litre = 103 cm3
Therefore, the quantity of water in litres = 4455000 cm3/103 cm3 = 4455 litres
Thus, the volume in litres of water delivered by the pipe in a hour = 4455 litres.
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