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4.0 J of work are performed in stretching a spring with a spring constant of 2500 N/m. How much is the spring stretched?

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energy = elastic \: potential


4 = (1)/(2) kx {}^(2)


4 = (1)/(2) (2500)x {}^(2)


4 = 1250x {}^(2)


x {}^(2) = (4)/(1250) = 0.0032 \: meters


x = √(0.0032) = 0.05657 \: meters

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