Flow Rate and Its Relation to Velocity (Problem 9)

(a) Estimate the time it would take to fill a private swimming pool with a capacity of 80,000 L using a garden hose delivering 60 L/min. (b) How long would it take to fill if you could divert a moderate size river, flowing at $5000{\text{m}}^3\text{/s}$, into it? Select the answer to part (a).