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Homework Help
Engineering and Comp Sci Homework Help
Vibration of Rigid Body with One Spring: Understanding Torque Equations
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[QUOTE="Alex Santos, post: 4965159, member: 526965"] [h2]Homework Statement [/h2] [B]Rigid body with one spring. [/B][h2]Homework Equations[/h2] Torque equations ( M=I * "alpha") [h2]The Attempt at a Solution[/h2] So I think I can solve this problem but there is only one thing I do not understand. When I am writing my torque equation I would think that the weight of the bar and the cube would affect the torque M = I * a + Mb * g *0.4 cos (theta) + Mw * g * 0.4 cos (theta) - k*0.4sin(theta) *0.4 cos(theta) but apparently the equation should be M = I*a -k*0.4sin(theta)*0.4cos(theta) why does the mg of both the objects not affect the torque, whenever I try to include them the differential equation becomes unsolveable [/QUOTE]
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Vibration of Rigid Body with One Spring: Understanding Torque Equations
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