81_Problem CHAPTER 10

81_Problem CHAPTER 10 - PROBLEM 10.71 Two uniform rods,...

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PROBLEM 10.71 Two uniform rods, each of mass m , are attached to gears of equal radii as shown. Determine the positions of equilibrium of the system and state in each case whether the equilibrium is stable, unstable, or neutral. SOLUTION Potential Energy sin cos 22 ll VW W Wm g θθ  =− + =   () cos sin 2 l W θ sin cos 2 dV Wl d =−− 2 2 sin cos 2 dV W l d For Equilibrium: 0: sin cos dV d == or tan 1 = − Thus 45.0 and 135.0 = −° = °
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This note was uploaded on 07/11/2011 for the course EGM 2511 taught by Professor Jenkins during the Spring '08 term at University of Florida.

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