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//Smallest weight W
//Refer fig. 5.9
mu=0.4
//consider equilibrium of block B
//using law of friction
N1=5/((0.5)+(tand(20))*(sind(20))) //kN
F1=N1*tand(20)
C=N1*cosd(30)-F1*cosd(60) //kN
//Consider the equilibrium of block A
F2=C //kN
//Law of friction
N2=4.196/0.4 //kN
W=N2 //kN
printf("\nW=%0.2f kN",W)
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