Question

why it is difficult for a firemn to hold a hose which ejects large amount of water that a high velocity

Answer 1

when large amount of water ejects through a small hole of hose with great preassure.

As the third law of newton says that every action has an equal and opposite reaction.


so, the force of water exerted in forward direction led a force in the backward of hose which is equal to that force of water.


hence, it is difficult for a firemn to hold a hose which ejects large amount of water that a high velocity.