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Question

A person sitting on a chair in a satellite feels weightless. it is because

A
the normal force by the chair on the person balances the earths attraction
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B
The normal force is zero
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C
The person in the satellite is not accelerated
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D
Cannot say
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Solution

The correct option is C The normal force is zero
Because the both the chair and the man are in a state of free fall and have similar forces of gravity acting on them. This equates to relative acceleration being zero between the man and chair leading to a zero value of normal force.

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