Question

A man is inside a lift. Lift is ascending with acceleration g. What will be the reaction of the floor?

Answer 1

When a person of man m is standing on a weighting machine placed in lift, the actual weight of a person = mg. This acts on the weighting machine which offers a reaction R, given by the reading of weighing machine. This reaction exerted by the surface of contact on the man is the apparent weight of the man. The apparent weight is different in different situation.


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