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A body is kept in a lift may be moving u...

A body is kept in a lift may be moving upwards or dowwards. It is found that durig the motion of the lift, the apparent weight of the body becomes twice its real weight. Then the lift is

A

moving up with a unifoirm velocity of 9.8 m/s

B

moving down with a uniform velocity of 9.8 m/s

C

moving up with acceleration g

D

moving down with an acceleration g

Text Solution

Verified by Experts

The correct Answer is:
C
When the lift moves up with a acceleration g, the apparent weight `= m(g+a)=m(g+g)=2mg`
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