Question

the area of cross section of a cylinder pipe is 35 cm2 water is flowing out of this pipe at the rate of 20 cm per second find the volume of water in litres in flew out of the pipe in 2 minutes​

Answer 1

Answer:

∴ Volume of the water flowing out of the pipe in 2 minutes is 84 litres.

Step-by-step explanation:

Given:

Area of cross section = 35 cm²

Speed of water flowing out of the pipe = 20 cm per second.

To Find:

Volume of the water flowing out of the pipe in 2 minutes.

Solution:

Volume of the water flowing out of the pipe in one second = area of the cross section of the pipe x water flowing out in one second

⇒Volume of water flowing out of the pipe in one second = 35 x 20 cm$^{3}$

= 700 cm$^{3}$

∴Volume of water flowing out of the pipe in 2 minutes i.e. 120 seconds = 700 x 120 cm$^{3}$

= 84,000 cm$^{3}$

∵ 1000 cm$^{3}$ = 1 litre

∴84,000 cm$^{3}$ = $\frac{84000}{1000}$ litres

= 84 litres

Hence, Volume of the water flowing out of the pipe in 2 minutes is 84 litres.

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Answer 2

Answer: ∴ The volume of the water flowing out of the pipe in 2 minutes is 84 litres.

Given:

         Speed of water flowing out of the pipe = 20 cm/second

         Area of cross-section = 35 cm^2

To calculate the volume of water that flowed out of the cylinder pipe in two minutes, we need to first calculate the rate of flow (in cubic centimeters per second). This can be found using the area of the cross-section of the pipe (35 cm2) and the rate of flow (20 cm/s):

The volume of water flowing out of the pipe in one second  

                           = Area of Cross Section * Rate of Flow

                            = 35 cm2 * 20 cm/s

                            = 700 cm3/s

We can then use this rate of flow to calculate the volume of water that flowed out of the pipe in two minutes. To do this, we multiply the rate of flow (700 cm3/s) by the number of seconds in two minutes (120 seconds):

The volume of Water = Rate of Flow * Time

                                    = 700 cm3/s * 120 s

                                    = 84000 cm3

Volume of Water in Litres = 84000 cm3 / 1000

                                           = 84 liters

Hence,

           The volume of the water flowing out of the pipe in 2 minutes is 84 liters.

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