question_answer

Give reasons and mention the law related to these statements. (i) It is easier to push an empty box than to push the box full of books. (ii) It is difficult for a fireman to hold a hose which ejects large amount of water with high velocity.

Answer:

                               (i) The box full of books has greater inertia and greater force is required to move the box full of books. Newton's first law of motion is related with this statement. (ii) The water pushed out of pipe exerts equal amount of force on pipe, making it difficult to hold.                              Newton's third law of motion is related with this statement.