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A man standing on a lift that is descending does not feel any weight because

A man standing on a lift that is descending does not feel any weight because
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  • A The inside of the lift is air tight
  • B The lift is in vacuum
  • C There is no reaction from the floor of the lift
  • D There is no gravitational pull on the man in the lift
Correct Answer: Option C
Explanation:
The resultant force acting on the man is given by w = mg - R
Mg - mg = 0
The man feels weightless because the reaction, R is equal to the weight mg

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