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A student unable to answer a question on Newton's laws of motion attempts to pull himself up by tugging on her hair. He will not succeed.

A

as the force exerted is small

B

the frictional force while gripping, is small

C

Newton's law of inertia is not applicable to living beings

D

as the force applied is internal to the system.

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  9. A boy of 50 kg is in a lift moving down with an acceleration 9.8ms^(-2...

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  10. A man is standing on a sparing platform, Reading of spring balaance is...

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  11. A lift accelerates upward, then decelerates and stops at higher floor....

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