Question
(a) What is the fluid speed in a fire hose with a 9.00-cm diameter carrying 80.0 L of water per second? (b) What is the flow rate in cubic meters per second? (c) Would your answers be different if salt water replaced the fresh water in the fire hose?
1. $12.6 \textrm{ m/s}$
2. $0.0800 \textrm{ m}^3\textrm{/s}$
3. No difference since flow rate does not depend on fluid density.
Solution Video