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# Sol prob equilibrium

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### Sol prob equilibrium

1. 1. 5-1 FBDDet Reaction in 5-11∑Fx=0RBcos 30-RAsin30=0RA= 3 RB 1∑Fy=RBSin30+RACos30-9.8*50=0 2From1in2RB=245NRA=424.35N5-2
2. 2. ∑Fx=RACos60-150+Bx=0∑Fy=By+360+RASin60=0∑MB =800+150*3-RA*12*Sin60-RACos60 *3=0RA=105.12IbBx=22.44IbBy=-451.027Ib5-3
3. 3. ∑FxAx=0.6T∑FyAy-80*9.8+T+0.8T=0∑MA=2T+2.4T=4312T=980NAy=-980NAx=588N5-5
4. 4. Cx-TCos30=0Cy-7000+TSin30=06000+4000*4-2TCos30-4TSin30=0T=5894.88NCx=5105.18NCy=4052.56N5-6
5. 5. Ax-12/13T=0Ay-650-1250-5/13T=015*15 3T/3+650*7.5 3 +15 3T-5/3-60T=0T=197.84NAx=182.622NAy=1976.09N5-7Fx=RB+Ax=0Fy=Ay=20IbMARB-140=0RB=140Ib
6. 6. Ax=-140Ib5-8FxRACos45-T-1250=0Fy=0RB+1250+T-1250 3=0MA=2500sin60*4+4000-3T-10RB=0T=269.97NRB=-1185.03NRA=2149.56N5-9
7. 7. FXRcsin30+RB-RA-10cos30=0Fy=RcCos30-10sin30=0Mc10sin30*3-10cos30*13-5RA-3tan30*RB=0RA=-12.91NRB=-74.53NRC=5.773N5-10
8. 8. FxCx+3RA/ 13=0Fy=Cy-2RA/ 13=500Mc=-500*4+18RA/ 13=0RA=400.66IbRB=400.66IbCx=-333.33IbCy=722.246Ib5-19
9. 9. 5-205-21