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mechanical eng homework 122

# mechanical eng homework 122 - a 3 =4950 rad/sec 2(ccw...

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Homework - 121 ME 431 Homework Find the external torque (T 12 ) that must be applied to link 2 of the mechanism illustrated below in order to drive it at ϖ 2 =1,800 rad/sec and α 2 =0 rad/s 2 . For the force polygon, use a scale of 1 in. = 50N. O 2 A=CA=3" W 3 =0.708 lb
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Unformatted text preview: a 3 =4950 rad/sec 2 (ccw) AB=8" W 4 =0.780 lb a 4 =8900 rad/sec 2 (cw). I G3 = 0.0154 lb-sec 2-in a G3 = 6320i + 750j ft/sec 2 I G4 = 0.0112 lb-sec 2-in a G4 = 2280i + 750j ft/sec 2. O 2 G 2 A B O 4 G 3 G 4 ϖ 2 2 3 4 Scale: 1" = 2"...
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