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20_Problem CHAPTER 10 - PROBLEM 10.19 A 1-kip force P is...

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PROBLEM 10.19 A 1-kip force P is applied as shown to the piston of the engine system. Knowing that 2.5 in. AB = and 10 in. BC = , determine the couple M required to maintain the equilibrium of the system when ( a ) 30 , θ = ° ( b ) 150 . θ = ° SOLUTION Analysis of the geometry: Law of Sines sin sin AB BC φ θ = sin sin AB BC φ θ = (1) Now cos cos C x AB BC θ φ = + sin sin C x AB BC δ θδθ φδφ = − (2)
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