A vertical spring is 100 cm long when supporting a 200 kg, Ask an Expert

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A vertical spring is 10.0 cm long when supporting a 20.0 kg mass, and it is 12.0 cm long when supporting a 32.0 kg mass. Assume the stretch is linear with the load.

A.) What is the length of spring with zero load?

B.) How much work would be done in stretching the spring from 10.0 cm to 15.0 cm?

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