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The disk has a weight of 10 lb and is subjected to a vertical force P=8 lb and a couple moment M= 5 lb⋅ft. The spring is originally unstretched. (Figure 1)

M
1.5 ft
k = 12 lbt

Determine the disk's rotation if the end of the spring wraps around the periphery of the disk as the
disk turns.
Express your answer using three significant figures.
vec
?
0 =

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