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Questions  

A man is inside a lift. When the lift is moving up with certain acceleration, the apparent change in weight is25% . When the lift moves down with same acceleration, the apparent change in weight is

a
25%
b
50%
c
75%
d
40%

detailed solution

Correct option is A

ag×100=25  take agx100=∆wwx100            a=g4                             % change = a′g×100                  = 14×100=25%

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