Question

why it is difficult for a fire man to hose which ejects large amount of water at a high velocity

Answer 1

$\huge \bold \red {❥answer}$

Therefore, in order to conserve momentum, the hose tends to move in the backward direction and hence is difficult to hold, or The ejection of large amounts of water at a high velocity from a hosepipe results in the development of an equal force of reaction on the hosepipe in the backward direction.

$\text {hope this helps you}$ ☺️

Answer 2

Explanation:

Therefore, in order to conserve momentum, the hose tends to move in the backward direction and hence is difficult to hold, or The ejection of large amounts of water at a high velocity from a hosepipe results in the development of an equal force of reaction on the hosepipe in the backward direction.