Math, asked by dhruvverma6709, 10 months ago

The diameter of pipe is 21cm. Water is flowing inside at a speed of 2km/h find the volum of water realeased by it 1min

Answers

Answered by abhi178
5

volume of water released in 1 min is 1.155 m³

given, diameter of pipe , d = 21 cm

speed of water flowing inside , v = 2km/h

length covered by water in 1 min, L = 2km/h × 1min = 2 × 5/18 × 60 = 600/18 = 100/3 m

now volume of water released in 1 min, V = volume of cylinder

= πr²L = πd²L/4 [ radius = diameter/2 so, r = d/2]

= π(21cm)² × 100/(3 × 4)

= 22/7 × 21 × 21 × 10-⁴ × 100/12

= 66 × 21 × 1/12 × 10-²

= 115.5 × 10-²

= 1.155 m³

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