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hwk_7 - ?2141 50 SHEETS 22—142 190 SHEETS 200 SHEETS...

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Unformatted text preview: ?2141 50 SHEETS 22—142 190 SHEETS 200 SHEETS 22-144 mm ' ' AMFAD , A Sign is suspended from two chains AE and BE Knowing that the tension in BF is 200 N, determine (a) the moment about A of the force ex~ erted bythe chain at B, (b) the smallest force apph’ed at C which creates the same moment about A. A Sign is suspended from two Chains AE and BF. Knowing that the tension in BF 15 200 N. determine (a ) the moment about A of the force ex- erted by the chain at B (b) the magnitude and sense of the vertical force ap— Plied at C which creates the same moment about A (a) the smallest force applied at B which creates the same moment about A. - Kmxgzw 21> m1 item it 1:11 ammo: W A .. .. "’ ‘ if .' _ WM?) '5 1 x 1 i _ . 44;”, 307912111 2-: 3461443141... 1 1' “1‘ 941914 '1' 4'0“ 5AM- '_ _. Gm) l) 3 3: meceswhzoamee d=100§+1732311 d MA: (2 5%.. $94.;ng CI 00§+ {73"2311 (.'2§X17312_5)—+ @0143 X MOE) ' ”3%.,4 7);, +~ (—4033 c _ weer/«lam [4/ MA: 310%? 21,04 DAM 7!?2i “M/ LQ‘2722“ «s: A; RD :m: can “@2712?in :be PT: A- _) 22—141 50 SHEETS 192142 100 SHEETS 22—144 200 SHEETS It is known that a force With a moment of 1152 N - m about D is. required to straighten the fence post CD. If the capacity of the winch puller; AB is 2880 N, determine the minimum value of distance d to create the spec- ified moment about point D lmowing that a = 0.24 In and 19 = 1.05 m. £39062§A092 5’ oft-r- 0,45% +L/eor 63mm“: Seaf— 0.48::0—L/é =0 _ 5e : «0.4051»— e’L + 0.462» a=us+g+ ...
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