In the above problem if the lift moves up with an acceleration equal to the acceleration due to gravity, the reading on the spring balance will be

Question

In the above problem if the lift moves up with an acceleration equal to the acceleration due to gravity, the reading on the spring balance will be, 2 kg, ( 2 × g ) kg, ( 4 × g ) kg, 4 kg

MARKS App · Accepted Answer

When lift moves upward then reading of the spring balance, R = m ( g + a ) = 2 ( g + g ) = 4 g N = 4 kg [As a = g ]

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