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A man of mass 60 kg is standing on a sp...

A man of mass 60 kg is standing on a spring balance inside a lift. If the lift falls downwards, then the reading of the spring balance will be:-

A

zero

B

60 kg f

C

`lt 60 kg f`

D

`gt 60 kg f `

Text Solution

Verified by Experts

The correct Answer is:
A

Physical independence of force is a consequence of first law of motion.
`= m(g-a) = 60 ( g-g)=0`
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