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+//CHAPTER 10 ILLUSRTATION 7 PAGE NO 273
+//TITLE:Brakes and Dynamometers
+clc
+clear
+//===========================================================================================
+//INPUT DATA
+P1=30;//Power in kW
+N=1250;//Speed in r.p.m
+P=60;//Applied force in N
+d=0.8;//Drum diameter in m
+q=310;//Contact angle in degree
+a=0.03;//Length of a in m
+b=0.12;//Length of b in m
+U=0.2;//Coefficient of friction
+B=10;//Band width in cm
+D=80;//Diameter in cm
+
+T=(P1*60000)/(2*3.14*N);//Torque in N.m
+Td=(T/(d/2));//Tension difference in N
+Tr=exp(U*(q*(3.14/180)));//Tensions ratio
+T2=(Td/(Tr-1));//Tension in N
+T1=(Tr*T2);//Tension in N
+x=((T2*b)-(T1*a))/P;//Distance in m;
+X=(P1/(B*D));//Ratio
+
+printf('Value of x is %3.4f m \n Value of (Power/bD) ratio is %3.4f',x,X)