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. Also write the law involved.
(ii) It is difficult for a fireman to hold a hose which ejects large amount of water with high velocity. Also write the law involved.
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1. greater force is applied to push a larger object and less force is applied to smaller or vacant objects.
Newton's laws is applied
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Answer:
(i) It is easy to push an empty box than a box full of books because it would have greater inertia than the empty box.
(Newton's first law of motion)
(ii) It is because the water coming out of the pipe exerts equal amount of force on pipe, making it difficult to hold.
(Newton's third law of motion)
Explanation:
1st law- An object at rest remains at rest and an object in uniform motion continues to be in uniform motion unless and until any external force is applied on it.
3rd law- to every action there is an equal and opposite reaction.
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