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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
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
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Solution
The correct option is D 4 kg
When lift moves upward then reading of the spring balance,
R= m(g+a)=2(g+g)=4gN=4 kg [As a=g]
4 kg
When lift moves upward then reading of the spring balance,
R= m(g+a)=2(g+g)=4gN=4 kg [As a=g]
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