A boy weighing $600 N$ is in a lift. If the lift experiences a breakdown and starts falling freely under the action of gravity, what would be the apparent weight of the boy in the lift?

$600 N$

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$100 N$

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$0 N$

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$400 N$

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Solution

The correct option is C
$0 N$

As we know, during free fall the only force acting is a man's weight itself. So, both lift and the boy inside would be in a state of free fall and hence the normal contact force between the floor of the lift and the man would be zero. Therefore the boy would experience weightlessness.

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A boy weighing 600 N is in a lift. If the lift experiences a breakdown and starts falling freely under the action of gravity, what would be the apparent weight of the boy in the lift?

A boy weighing $600 N$ is in a lift. If the lift experiences a breakdown and starts falling freely under the action of gravity, what would be the apparent weight of the boy in the lift?