Question

please friends give me answer of these question​

Answer 1

This is due to Newton's Third Law of motion (every action has an equal and opposite reaction).

The fireman finds it difficult to hold the hose because the water shoots put of the hose with an extremely high velocity. An equal reaction force is exerted on the hose which pushes the fireman back

Answer 2

Answer:

When large amount of water is ejected from a hose at a high velocity, according to Newton's Third Law of Motion, water pushes the hose in backward direction with the same force. Therefore, it is difficult for a fireman to hold a hose in which ejects large amount of water at a high velocity.

Explanation:

This can be better understood by the Newton's third law of motion every action has equal and opposite reaction.