## Question

###### A force of pounds is required to hold a spring stretched 0.3 feet beyond its natural length. How much work (in foot - pounds) is done in stretching the spring from its natural length to 0.9 feet beyond its natural length?

A force of pounds is required to hold a spring stretched 0.3 feet beyond its natural length. How much work (in foot - pounds) is done in stretching the spring from its natural length to 0.9 feet beyond its natural length?

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