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Question
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?
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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.
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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