PROBLEM No. 4 Forces F1 =250 N, F2=300 N and F3=500 N acts o…

PROBLEM No. 4 Forces F1 =250 N, F2=300 N and F3=500 N acts on the frame shown below. Based on this information answer the following question: Question 4.8. What is the moment of all 3 forces (F1, F2 and F3) about point B? [Enter value in units of N and m, CCW as positive, CW as negative rounded to the nearest whole number]