Engineering Mechanics - DynamicsChapter 21Problem 21-46The conical pendulum consists of a bar of mass mand length Lthat issupported by the pin at its endA. If the pin is subjected to a rotation ω,determine the angle θthat the bar makes with the vertical as it rotates.Solution:IxIz=13mL2=Iy0=x0=y−cos()=zsin='x0='y0='z0=ΣMxIx'xIyIz−yx−=m−gL2⎛⎝⎞⎠sin00132−⎛⎝⎞⎠−cossin−=g213Lω2cos=acos3g2L2⎛⎜⎝⎞⎟⎠=Problem 21-47The plate of weight Wis mounted on the shaft
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