97_Problem CHAPTER 10

97_Problem CHAPTER 10 - PROBLEM 10.85 Collar A can slide...

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PROBLEM 10.85 Collar A can slide freely on the semicircular rod shown. Knowing that the constant of the spring is k and that the unstretched length of the spring is equal to the radius r , determine the value of θ corresponding to equilibrium when 20 kg, m = 180 mm, r = and 3 N/mm. k = SOLUTION Stretch of Spring s AB r = ( ) 2c o s s rr = ( ) 2cos 1 sr = Potential Energy: 2 1 sin 2 2 Vk s W r W m g =− = () 2 2 1 1 sin2 2 r W r 2 1 2sin 2 cos2 dV kr Wr d θθ
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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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