A Firefighter Uses a Hose That Shoots Water at a Rate

Multiple Choice

A firefighter uses a hose that shoots water at a rate of 5 m/s and volume flow rate of 40 L/s. If the firefighter is spraying the wall of a house, what is the average force exerted on the wall, assuming that the water splashes sideways in all directions? The density of water is 1000 kg/m³.

A) 5 N
B) 40 N
C) 80 N
D) 100 N
E) 200 N