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answers2 - l g Cos Sin 2 6 1 3 2 2 α − − − =...

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CE 222 ENGINEERING MECHANICS II ( FALL 2003 – 2004 ) EXERCISE SHEET II ANSWERS TO SELECTED QUESTIONS Q-1: 0.508 s Q-2: ) . .( . θ µ θ θ Cos Sin Cos mg T k = Q-3: (a)33.6 N , (b) a A =4.76 m/s2 , a B = 3.08 m/s2 , a C = 1.401 m/s2 Q-4: (a) a 1 = 12.25 m/s2 , (b) a 2 = 3.87 m/s2 Q-5: --- Q-6: a = 2.01 m/s2 , crate slips Q-7: 7.55 rad/s2 , 0.755 m/s2 , 45.3 N Q-8: m s = 0.0339 Q-9: ( ) [ ] (
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Unformatted text preview: l g Cos Sin . 2 . . 6 . 1 . 3 2 2 α − − − = counterclockwise Q-10: (a) 4.09 m/s2 , (b) 42.5 N Q-11: (a) 3g / 8r , (b) 0.395g Q-12: 3.19 m/s2 Q-13: 0.352 m Q-14: V = 3.764 m/s Q-15: V = 1.72 m/s Q-16:--- Q-17: 2.36 rad/s Q-18: 16.7 rad/s clockwise Q-19:--- Q-20: (a) 7.32 rad/s , (b) 139.1 N...
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