Question

water is being pumped out through a circular pipe whose internal diameter is 7 cm. if the flow of water is 12 centimetre per second how many litre of water is being pumped in an hour?​

Answer 1

Answer:

Water is being pumped out through a circular pipe whose internal diameter is 7cm. If the flow of water is 12 cm per second, how many litres of water is being pumped out in one hour? =1663200cm3=1663.2ltr.

Step-by-step explanation:

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Answer 2

Answer:

we have,

Radius of the circular pipe 7/2 cm

It is given that the water flows out at the rate of 12 cm/sec

Length of the water column flowing out in one second=12cm

Volume of the cylinder of radius 7/2 cm and length 12cm

$\\ v = \pi {r}^{2} h \\ = \frac{22}{7} \times ( { \frac{7}{2} })^{2} \times 12 \\ = \frac{22}{7} \times \frac{7}{2} \times \frac{7}{2} \times 12 \\ = 462 \: {cm}^{3}$

Volume of water flowing out in one hour

$= 462 \times 3600 = 1663200 \: {cm}^{3} \\ = 1663.20 \: litre$