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+// SAMPLE PROBLEM 3/14
+clc;clear;funcprot(0);
+// Given data
+F=800;// lb
+v=4;/// ft/sec
+P=6;// The power output of the winch in hp
+P_i=8;// hp
+theta=30;// degree
+g=32.2;// The acceleration due to gravity in ft/sec^2
+
+// Calculation
+N=F*cosd(theta);// lb
+// SigmaF_x=0;
+T=(P*550)/v;// The tension in the cable in N
+mu_k=(T-(F*sind(theta)))/N;// The coefficient of kinetic friction
+T=(P_i*550)/v;// lb
+a=(T-(N*mu_k)-(F*sind(theta)))*(g/F);// The acceleration in ft/sec^2
+printf("\nThe corresponding instantaneous acceleration of the log,a=%2.2f ft/sec^2",a);