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+//CHAPTER 10 ILLUSRTATION 8 PAGE NO 274
+//TITLE:Brakes and Dynamometers
+clc
+clear
+//===========================================================================================
+//INPUT DATA
+m=80;//Mass of flywheel in kg
+k=0.5;//Radius of gyration in m
+N=250;//Speed in r.p.m
+d=0.32;//Diamter of the drum in m
+b=0.05;//Distance of pin in m
+q=260;//Angle of contact in degree
+U=0.23;//Coefficient of friction
+P=20;//Force in N
+a=0.35;//Distance at which force is applied in m
+
+Tr=exp(U*q*(3.14/180));//Tensions ratio
+T2=(P*a)/b;//Tension in N
+T1=(Tr*T2);//Tension in N
+TB=(T1-T2)*(d/2);//Torque in N.m
+KE=((1/2)*(m*k^2)*((2*3.14*N)/60)^2);//Kinematic energy of the rotating drum in Nm
+N1=(KE/(TB*2*3.14));//Speed in rpm
+aa=((2*3.14*N)/60)^2/(4*3.14*N1);//Angular acceleration in rad/s^2
+t=((2*3.14*N)/60)/aa;//Time in seconds
+
+printf('Time required to bring the shaft to the rest from its running condition is %3.1f seconds',t)