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A metal rod that has a diameter of 1.0 cm and a length of 0.75 m...

A metal rod that has a diameter of 1.0 cm and a length of 0.75 m is stretched by 2.5 mm when subjected to a force of 115 kN (kilonewtons). Assuming that it remains in its elastic region, how much work would it take to compress this rod by 5.0 mm?

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