A rectangular reservoir is 120 m long and 75 m wide. Find the speed of water flowing into it through a square pipe of 20 cm side such that the water rises by 1.2 m in 9 hours.
Volume of the water flown in 9 hours = (120 x 75 x 1.2)m3
Volume of water flown in one hour =
m3
Area of the mouth of the square pipe =
= 0.04m2
Speed of water per hour=
= 30, 000 m
... Hence speed of water flowing in the reservoir = 30 km/hour
Volume of water flown in one hour =
m3Area of the mouth of the square pipe =
= 0.04m2 Speed of water per hour=
= 30, 000 m... Hence speed of water flowing in the reservoir = 30 km/hour
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