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A spring balance is attached to the ceil...

A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads 49N, when the lift is stationary. If the lift moves downward with an acceleration of `5m//2^2`, the reading of the spring balance will be

A

24N

B

74N

C

15N

D

49N

Text Solution

Verified by Experts

The correct Answer is:
A
For the bag acceleration down
`mg-T= ma`
`:.T=m(g-a)=(49)/(10)=(10-5)`
`=24.5N`
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