Vector Mechanics for Engineers: Statics

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Unformatted text preview: COE 2001 Statics: Quiz #2 1. A 150 kg cylinder is pinned at A to a 200 kg uniform bar (gray) that is horizontal and bears against a smooth (frictionless) circular wall of radius 2m whose center is located 4m to the right as shown below. Find the force, P, required for equilibrium. HINT: consider a FBD for the gray bar. Note: in SI units, g = 9.81 m/sz. 0155670 6 .‘ /, Do 03% uam‘ 84 orA/ 2 LU I5 knam = mg :200*C7»?/ 3. may neat/M 41>wa P 0: 2N742—5/2st +- L*/\)SI0D( N: “ya/30%: ——\’2\—_//}/2 SW. 0:21;”: I'D—Altos“ P: N495“: “(03%: WE = zooms/V; =MN Name Summer 2005 P E L‘——V7‘—'%l /' X _8 it lea—e—arRN Ea W L= 4+2co3N=4+V§ +0MV=’/Z ~>v<=300 ill/é (So/'4 5‘ own-é 2> a—l /r)-/€/;5€c14(m a! BC an UflMaz/va 4.“ 2. For the truss shown; a. Find the force in CD using the method of joints for selected joints only and observing any possible simplifications. Do not solve for all member forces if possible. b. Find the forces in BH and AH using the method of sections. 100 lb 200 lb 300 lb 400 lb (4) 564,). b gt: 6 [CD (— 500 400 41% 0.2a: 400— 55 f2 5* _ _.L gg: 4005 6' ZFH’lzz’SOD—‘QEQ 0'; :Mg: — Z‘rf/m —- 2*200“4*360—Vk400 ‘L’AH -_ _ (290+ zkaco + 9.400) ...
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