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

Question

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 / s 2 , the reading of the spring balance will be

TestHub · Accepted Answer

Mass = 9.8 49 ​ = 5 kg . When lift is moving downward, apparent weight = 5 ( 9.8 − 5 ) = 5 × 4.8 = 24 N

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