2001 HW 1.1 PLEASE HELP!! Urgent!! If unable to work all parts please leave for someone else :)

1. A coplanar force system is shown in Figure 1. (a) Find the sum of the three forces. (2 points) (b) Reduce the force system to a force-and-couple resultant at O. (2 points) (c) Reduce the force system to a force-and-couple resultant at an arbitrary point A = (x, y). (2 points) (d) Locate a point on the x-axis at which the force system can be reduced to a single force. (2 points) y F3 = 10 N 5 m A 5 m 3 F1 = 10 N F2 = 10 N O X 2 m 5 m 5 m