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+// SAMPLE PROBLEM 3/21
+clc;clear;funcprot(0);
+// Given data
+m=0.5;// kg
+v_1x=10;// m/s
+v_1y=0;// m/s
+t_1=1;// s
+t_2=2;// s
+t_3=3;// s
+
+// Calculation
+v_2x=((m*v_1x)-((4*(t_1))+(2*(t_3-t_1))))/(m);// m/s
+v_2y=((m*v_1y)+((1*(t_2))+(2*(t_3-t_2))))/(m);// m/s
+v_2=[v_2x,v_2y];// m/s
+v_2=norm(v_2);// m/s
+theta_x=180+atand(v_2y/v_2x);// degree
+printf("\nThe velocity of the particle at the end of the 3-s interval,v_2=%2.0f m/s \ntheta_x=%3.1f degree",v_2,theta_x);