A body of mass 2 kg is hung on a spring ...

A body of mass 2 kg is hung on a spring balance mounted vertically in a lift. If the lift descends with an acceleration equal to the acceleration due to gravity ‘ g ’, the reading on the spring balance will be

2 kg

4g, kg

2g kg

8g kg

Text Solution

Verified by Experts

The correct Answer is:

Reading of spring balance is tension
2g -T = 2a
`2g - 2a =T` (a=g)
T=0

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