A fire hose is turned on the door of a burning building in

Last updated: 7/31/2022

A fire hose is turned on the door of a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back? 15 m/s 30 m/s 20 m/s 25 m/s