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//Force P required
//refer fig. 7.6
mu=0.3
theta=(250*%pi)/180 //radians
r=250 //mm
T1=(300*10^3)/(250*(%e^mu*theta-1)) //N
T2=(%e^mu*theta)*T1 //N
//Considering equilibrium of lever arm
P=(1644.06*50)/(300) //N
printf("The required value is P=%.2f N",P)
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