Vector subtraction (F1 - F2) is a special case of vector addition, since F1- F2 = F1 + (-F2). Use the data (magnitude and direction) of F1 and F2 obtained in measurement 1 to find out the magnitude and direction of the resultant vector of F1 - F2.
The data is:
F1: 200g and 30 degrees. F2 = 200g at 120 degrees.