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Homework #25

# Homework #25 - i“ 1— 3133i a3...

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Unformatted text preview: i“ 1— 3133i a3 ' “ljl‘i‘i’ #325" Key 'l'able-Group 17.96 The angular velocity and angular acceleration of bar AB are 0),”; = 4 1'3de and a,” = —6 tact-"33. Having all the accelerations from HW 22, consider that a motor is attached to bar CD at D and it drives the system with a couple applied there. Find the forces at the 4 pins and the driving couple MD applied by the motor to create the given motion. Let the mass-e}; ofthe bars '— 15, ll}. 20 kg for AB, BC, Cl") respectively. The motion is in a vertical plane. Treat the bars as uniform and neglect all friction at pins. .r " (rival/ears)A reel/52¢ L l 6 I : “- --* “— A. _. _ 2m _ ﬂ MAE-ﬂ #LJKAE': d-(a k h : ‘1 A " i_. mg": 5;, ) dﬁc: lib m“; It H,- ' i I n a f In Lucﬂ“ —Z.fa¢v7l€—J A“, A {'W'. 2 l E 2'. ,- d' a. la. 3 l: lm g. l '"lZJ H/‘SC‘L : ﬂ. - Im H -m - ' r Lie. m.ny Tile. accefﬁram‘u iﬁa‘f MLHV, Faﬁ'l‘a‘ﬁ‘ﬂKPQ/AﬂLOII-ﬁ FGKA J = 5’ *GGWU 7“) *' (43%? ‘L. pd I'M "4056;:15: LEVM. right. 5(an ...
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Homework #25 - i“ 1— 3133i a3...

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