(Answered) An unstretched spring is 1200 can long when you hang an 875

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An unstretched spring is 12.00 can long. When you hang an 875 g weight from it, it stretches to a length of 14.40 cm.

a) What is the force constant (in N/m) of this spring?

b) What total mass must you hang from the spring to stretch it to a total length of 17.72 cm?

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