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6.5 Springs

Springs without mass, that satisfies the Hooke’s law. d is the length that the spring is stretched or compressed. If the spring is stretched d is positive, if is compressed is negative. Allow one or two forces. If have two forces these must have different sense (stretching or compressing the spring), and the same values or unknown data. Don’t allow frictions or resultants.

Equations:	1
Data:
k:	Spring constant.
d:	Length that the spring is stretched or compressed.