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Introductory Physics Homework Help
What Force Keeps a Bar at a Constant Angle on a Smooth Plane?
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[QUOTE="Krushnaraj Pandya, post: 6018026, member: 646372"] [h2]Homework Statement [/h2] A uniform bar of mass m is being moved on a smooth horizontal plane by applying a constant horizontal force F acting at the lowest point. If the rod translates making a constant angle 'theta' with vertical, the value of F must be? [h2]Homework Equations[/h2] 1) F=ma 2) Torque=Moment of Inertia X Angular acceleration [h2]The Attempt at a Solution[/h2] I tried to equate net torque about center of rod and lowest point of rod to zero but can't figure out how to do so in either configuration, I figured the torque of the force about the center is F(L/2)cos(theta) assuming length of rod as L, I don't know how to proceed or how this will give us the value of F in terms of m, g and theta [/QUOTE]
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What Force Keeps a Bar at a Constant Angle on a Smooth Plane?
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