Chapter 2.8, Problem 148P

The spring of k and unstretched length 1.5R is attached to the disk at a radial distance of 0.75R from the center C. Considering the tension in the spring to act on point A, plot the moment which the spring tension creates about each of the three coordinate axes at O during one revolution of the disk $\left(0\le \theta \le 360°\right).$ Determine the maximum magnitude attained by each moment component along with the corresponding angle of rotation $\theta$ at which it occurs. Finally, determine the overall maximum magnitude for the moment of the spring tension about O along with the corresponding angle of rotation $\theta .$