The throttle-control lever OA rotates in the range 0 # # 908. An internal torsional
Chapter 2, Problem 2/189(choose chapter or problem)
The throttle-control lever OA rotates in the range \(0 \leq \theta \leq 90^{\circ}\). An internal torsional return spring exerts a restoring moment about O given by \(M=K(\theta+\pi / 4)\), where \(K=500 \mathrm{~N} \cdot \mathrm{mm} / \mathrm{rad}\) and \(\theta\) is in radians. Determine and plot as a function of \(\theta\) the tension T required to make the net moment about O zero. Use the two values d = 60 mm and d = 160 mm and comment on the relative design merits. The effects of the radius of the pulley at B are negligible.
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