Given below are few situations, study them and state in which of the given casual workers to be done. Give reason for your answer:
(i) A person pushing hard rock but the rock does not move.
(ii) A block pulling record up to 1 kilometre on road.
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Answer:
I know the first one
Explanation:
it's because of the force i.e. when the person push the hard rock, it radiate back and so on, it gave an equal force . Therefore the rock does not move.
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