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Modulus of a Complex Number

A block B is ...

Question

A block (B) is attached to two understand springs $51$ and $52$ with spring constants k and $4$ k respectively The character

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Solution

$\frac{k x^{2}}{2} = 4 \frac{k y^{2}}{2}$

$\frac{y}{x} = \sqrt{\frac{1}{4} =} 0.5$

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