What is the weight of a person in free fall? could you show your work?

zero (weightless)

Explanation:

when a person free fall under the effect of gravity person  feels weightless.

to understand this condition we take example of person sitting in a lift and lift is moving down with acceleration 'a' which is shown in the figure below,

in this condition there will be pseudo acc acting on the person

as,

so now,

so in free fall 'a' becomes equal to 'g'

force acting on the body becomes zero i.e. person feels weightless.

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