When a 3.80-kg object is hung vertically on a certain light spring that obeys Hooke's law,...

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When a 3.80-kg object is hung vertically on a certain light spring that obeys Hooke's law,...

When a 3.80-kg object is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.60 cm.

(b) How much work must an external agent do to stretch the same spring 4.00 cm from its unstretched position?
_____J

science physics

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Answer 1

Answer #1

An external agent will have to do work of 2.29 J on the unstressed spring to stretch it by 4 cm.

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Answer 2

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