Question

A man in a lift will weigh more when:

• A. Lift accelerated upward
• B. Lift accelerates downward
• C. Lift descends freely
• D. None of these

Answer 1

The correct option is A Lift accelerated upward

Weight of men is normal feel on feet form ground. Which is $mg$ when body is at rest.

Now if lift is stationary then $N-mg=m0$ so $N=mg$

As the man is in lift then assuming acceleration of the lift is upwards then $N-mg=ma$ so $N=mg+ma$ more then normally weighted body.

If the lift is moving downward with acceleration a, then $N-mg=-ma$ so $N=mg-ma$ less then normally weighted body.

So for body to weighted more then normally standing body is going upward in lift.

So option A is best possible.