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hwk9 - The tension in cable AB is 400 N and the tension in...

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Unformatted text preview: The tension in cable AB is 400 N, and the tension in cable CD is 600 N. (a) If you represent the forms exerted on the leftpost by the cables by a force F acting at the origin 0 and a couple M, what are F and M? ' . (b) If you represent the forces exerted on the left post by the cables by the force F alone, where does its line of action intersect the y axis? q = m4 4%; 3 242.57" A o( "P=+M.'%:ZO,%O C 1'wain 400 (w: Zéflgvmflérmj) 0 cu: éoml : $7.89; —. (78,9; N 2 -9 Q) ~ Top”; éongm 20o%é-‘M ) 7 @57.3+%l.8>‘g+</l75,95210703 N 13: 9mm; —389«é>5 N _ "2 , 09* -? 0 raw 7003 m (01,,“ O .7 '7."/ {19.9 o 39.3 ~HB.9 1 0n .9 .a-a ego-ex? 10i — 30j + 3k (lb) 12 in. i! The wall bracket is subjected to the force shewn. Deter; mine the moment exerted by the force (a) about the z axis, (b) about the y axis. (c) If you represent the force by a force F acting at 0 and a couple M, what are F and M? Maze , m; u‘hfié = 10;«%;+3E 24, :zcfiwég ? I Two systems. of forces and moments act on the beam. Are l they equivalent? EX PLA'IN , oui\‘M0'\[E“ “(o W LgFT CO)‘ M “F F/Q SYSTEM "FaR EMH BEAM ow o), “MP/W6 13’ 4‘; MR 0e BMW sK/g‘TgM, 5“!“ 3130 2 R=+to—20=—po++— '~°‘ M: :— 5’0 016+- — 20474 : , 30%“ § 3‘. \ E=~20 HO =~io#= M w, W plate. Determine the force F and the couple M. SEEM .igx“: 3090», REX—".3032" gjz‘ffOu—[O-zli'tom‘, R3: fin?!) Two equivalent systems of forces and moments act on the I 1 i finial; E3, .3 p51 Tm” .v ’50 :40 Represent the two forces and couple acting on the beam by a force F. Determine F and determine where its line of action intersects lhe .v uxis. iimif 14/3 sysfm O: ,1) /¢ —403+503-+ong ,0 == 502‘- +204“ “.4 fig 0 1 MO: -280 0% + >< ,géélég} = wzaogaéog Nvm .6 80 E [kl/m . Nimé‘ X—Mté WH’aKé XL, xé/gj—ewé} : 8’2on low. 20x z :BOE o egg/T Lofi. of, <13 (NW [T Mama/s“ \/~ m} :; 33x (603+;quv: 50 lg Ai'm~ i ...
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