B F 4 4 ft 4 ft 4 ft 2 ft A A) Compute the couple moment created by the pair of forces. F1 = [ 120, - 70, - 20 ] lb. F2 = [-120, 70, 20 ] lb. B) Find the magnitude of that couple.

If the magnitude of the resultant force acting on the bracket is known to be 450 N directed along the positive u-axis. Find the angle ø and the magnitude of F1. (Note the wording of this problem. It asks for the value of ø. o is reference from the vertical. In a picture it okay to reference the angle of a vector from the vertical. It is okay also to find a final answer of an angle to the vertical. This problem does not say "find the magnitude and direction of F,". If it did, you would have to find the angle of F1 to the horizontal and ø would not be the correct angle to use in your answer.) F, 30° F = 200 N 12 13 F = 260 N

Please give the correct handwritten solution. Don't copy from othersites. Solution must be handwritten only

4.8 Exercises (Ch. 4) ← Go back to the menu Moment of a couple 45 B M = Determine the moment of the couple formed by the two 130 lb forces shown. Grid units are in [in]. 45° X

Problem 2 For the system of forces shown to the right, complete the following: a) Represent force F1 in Cartesian notation b) Represent force F1 in scalar notation (use cylindrical coordinate directions and y) c) Represent force F2 in Cartesian notation d) Determine the magnitude of the resultant of the forces D 120% 60° This line is parallel to the x-axis F₂ = 400 N 45° This area is in the x-y plane y 35° F₁ = 25° = 250 N This line is parallel to the z-axis

2-26 Find the resultant of the force system shown in Figure P2-26. 6k 64 78° 48° 33° Figure P2-26