Question

Compression member AB is used to hold up the 260 x 380-mm rectangular plate. If the compressive force in the member is 270 N for the position shown, determine the magnitude of the projection of this force (as it acts at point A) along diagonal OC. 255 260 132 OK 300 Dimensions in millimeters Answer: Foc =

Answer 1

Answer: FBA A ( 260 sin39", -255,96066532) A (137.54 , -255 , 990.43) B ( 300, -75,0) c ( 260Sin 39; - 380 , 5050532) < (137.54 , -380 , 220.43) 0 (0,0,0) ark -300 - FOA : 2700 FOA : FBA BA - 270 [137.54 - 300 ) 9 +(-255 +75) ? +(930.43-0) ] (137.54-900)+(-28+75)2 +(230.48)2 F-169.462 + (-130) + 330.4827 250€ .-30.J101404.05 FSA : 970 (-0.495 î - 0.549ſ +0.6726] now, vector along digonal oc je cc oč :( 137.547' 38 +230.43 ) now, mognitude of FiBA on digonal oc is given by For : FSA oc locul

8 sc : 210 (-0.495 -0.54ป์+0.6338). (137. 54 350 + 50.4K) J (137.54) + (-350) + (2.20.45) : 230 (-68-08 + 086 + 148.16 ) 3 เซน17.24 144900 + 4361.4 270 (293 68) 211.98.6 179936 ฯ 60.3 r : 169.31 N