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+// SAMPLE PROBLEM 3/1
+clc;clear;funcprot(0);
+// Given data
+m=75;// kg
+T=8300;// The tension in the hoisting cable in N
+g=9.81;// The acceleration due to gravity in m/s^2
+m_ems=750;// The total mass of the elevator, man and scale in kg
+t_0=0;// s
+t_1=3;// s 
+
+// Calcaulation
+// SigmaF_y=m*a_y;
+a_y=(T-(m_ems*g))/m_ems;// m/s^2
+// SigmaF_y=m*a_y;
+R=((m*a_y)+(m*g));// N
+v=(1.257*t_1)-(1.257*t_0);// m/s
+printf("\nThe equal and opposite reaction,R=%3.0f N \nThe upward velocity of the elevator,v=%1.2f m/s",R,v);