//Example 1_1 clc(); clear; //To add the given Displacements Graphically d1=25 //units in cm d2=10 //units in cm d3=30 //units in cm R=sqrt(d1^2+d2^2+d3^2) //units in cm theta1=30 //units in degrees theta2=90 //units in degrees theta3=120 //units in degrees theta=360-(theta1+theta2+theta3) //units in degrees printf("The Resultant R=%.2f cm\n",R) printf("Theta=%d degrees",theta) //In text book the answer is printed wrong as R=49cm and theta=82 degrees but the correct answer is R=40.31cm and theta=120 degrees