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Asked By:  Adeyemi

A spherical container of diameter 45m is filled by water issuing from a pipe of radius 75cm at 5m per second. Calculate correct to three significant figures, the time in minutes, it takes to fill the container. (Take π= 3.142)

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Answer of the Above Question

Answer By: Excellant

Volume of sphere = (4/3) Pi r^3 and volume of cylinder = Pi r^2 h So, number of seconds = [(4/3) Pi x 22.5^3]/(Pi x 0.75^2 x 5) = 1080 second = 18 min

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