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Questions  

A man in a lift feels an apparent weight W when the lift is moving up with a uniform acceleration of 1/3rd of the acceleration due to gravity. If the same man were in the same lift now moving down with a uniform acceleration that is 1/2 of the acceleration due to gravity, then his apparent weight is

a
3W/8
b
3W/4
c
W/8
d
5W/8

detailed solution

Correct option is A

W1=mg+g3 in the first case W2 =mg-g2 in the second case W1W2=4mg3mg2=83

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