A 5/8 inch diameter (inside) garden hose is used to fill a round swimming pool 7.2m in diameter. How long will it take to fill the pool to a depth of 1.5m if water issues from the hose at a speed of 0.28m/s?(adsbygoogle = window.adsbygoogle || []).push({});

5/8in = 0.0159m

A = pi(3.6m)^2 = 40.7 m^2

V = (40.7m^2)(1.5m) = 61.07 m^3

v = 0.28m/s

t = ?

t = V/(vA) = (61.07m^3)/(0.28m/s)(40.7m^2) = 5.36s

That seems like a pretty short time to fill the pool...

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# Answer check Volume, velocity

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