Questions
A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads 49 N, when the lift is stationary. If the lift moves downward with an acceleration of 5 m/s2, the reading of the spring balance will be :
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Correct option is A
According to question, mg = 49 (lift is stationary)If lift is moving then reading=m(g−a)=mg−g2=mg2=492≃24NSimilar Questions
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