# calculus

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A spring exerts a force of 4x lbs when it is compressed a distance of x feet. How much work is required to compress the spring a distance of one inch?

• calculus -

a = 0 (start of the spring)
b = 1

integrate 4x then plug in the limits (0 and 1)

• calculus -

Correction its not 2. It's 1/72 ft lbs

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