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The potential energy, P, in a spring is represented using the formula P = kx2. Lupe uses an equivalent equation, which is solved for k, to determine the answers to her homework.

Which equation should she use?

k = 2Px2
k = Px2
k = 2p/x2
k = p/2x2

Respuesta :

Michaelmouse
k = 2p/x^2 You should use this equation.
JannetPalos

Original equation is [tex]P=kx^{2}[/tex]

So, [tex]kx^{2} =P[/tex] and

[tex]k=\frac{P}{x^{2} }[/tex]

If we compare this equation with the given options, we can easily find that this matches with the last one [tex]k=\frac{p}{2x^{2} }[/tex] with P = p/2.

Hence, correct option is [tex]k=\frac{p}{2x^{2} }[/tex].

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