3)Volume of a cylindrical tank is 12 cubic metre.How
long will it take for a pipe to fill the tank when water is
running at speed of 2 m/s given that cross sectional
area of the pipe is 0.5 m2
.
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Answer:
volume of the tank = 12 cu m = 12×1000
= 12000 litres
volume of water flowing through the pipe per second is,
cross sectional area in sq m × speed in m/sec
=> 0.5 × 2 = 1 cu m/sec or 1000litres / sec
therefore time taken
= vol of tank / vol of water flowing per sec
=> 12000 ÷ 1000
=> 12 seconds
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