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Unformatted text preview: [/3 limo#23 1m zUcru’Z 18.27 Arm BC has amass of 12 kg and the moment of inertia about its center of mass is 3 kg—mz. Al the instant
shown, arm AB has a constant clockwise angular velocity of 2 radfs and arm BC has a counterclockwise angular
velocity of 2 rad/s and a clockwise angular acceleration of 4 radfsz. What are the couple and the components of force exerted on arm BC at B‘? 7. r A ' A A ‘ A.
23:+( 40x63 641.401 tubM403) “(925(44'0? +13%4'09 “fez"+9? "’¢"”3 ‘“ sea” l’élvlﬂlfébv :aéﬁ '' 22,. = Mm” = _____._.—... fél"f; 82, Ilcm) = {\éMc]: I
= EPA“ 7 4$: ' _,
( 3063540) (42%)(quo) jab . 3&4)
M67112! umj 18.46 The 18kg ladder is released from rest in the position shown. Model it 35's slender bar and neglect
ﬁiction. Determine its angular acceleration at the instant of release. Obscruﬁ: 18.113 The slender 2slug bar AB is 3 ft long. It is pinned to the cart at A and leans against it at B.
(a) If the acceleration of the cart is a = 20 W52, what normal force is exerted on the bar by the cart at B?
(b) What is the largest acceleration a for which the bar will remain in contact with the surface at B? A4520 Sta/m». '17 M 4;:9441191‘)Ax:33'54m a.
f; B“ 21.4415 L4! it, .1.
“gut"l6 W (6 mtofd. S 5" wiltL‘ aA=1O’%z‘9’ $6 FIN? Marx a!“ PW What if. “A gxﬁo 2:65PM mm" le’xﬂ'ox “aeF’O “541739 A/wm 1H Axum.” ~—~——~_———[
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 Fall '08
 Biggers
 Statics

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