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A spring is at rest in the vertical direction. When a 5 kg mass is placed upon the spring, the length of the spring compresses

A spring is at rest in the vertical direction. When a

5

kg mass is placed upon the spring, the length of the spring compresses to

0.20

meters. The

5

kg mass is removed and replaced by an

8

kg mass, which compresses the spring to a length of

0.17

meters. How much work was done on the spring in each instant?

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The work done on a spring is given by the formula Work 05kx2 where k is the spring constant and x is ... blur-text-image

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