is a square with sides of length 28 cm. Two forces of magnitude 117 N act along and , and two other forces of magnitude of 177 N act along and as shown in the figure. Find the algebraic measure of the moment of the resultant couple.
is a square of side length 5 cm, where four forces, measured in newtons, are acting on the sides of the square as shown in the figure. If the system of forces is equivalent to a couple whose magnitude is 65 N⋅cm, determine all the possible values of .