Question

answer it
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Answer 1

Answer:

2 is correct

Explanation:

Cuz when we apply 2mg force from upward to downward so ideally there will be no loss in any energy exceplt spring energy due to this applied force will b approximately equal to released force..

so just after we release it will extend the spring to its maximum elongation which is

$xmax = 2f \div k \\ \\ \\ where \: f = mg$

so 2mg will just lift it

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