Lesson: Equivalent of a system of coplanar forces to a couple

is a square, where the five forces, measured in newtons, are acting on it as shown in the figure. If the system of forces is equivalent to a couple, determine and .

is a square having a side length of 85 cm. Forces of magnitudes 30, 55, 30, and 55 newtons are acting along the square’s sides, and two equal forces of magnitude newtons, are acting at and in the directions shown in the figure. Find the couple equivalent to the system.

is a triangle, where , and three forces of magnitudes 13, 13, and 24 newtons are acting along , , and respectively. If the system of forces is equivalent to a couple, determine the magnitude of its moment.

In a triangle , and . Forces of magnitudes 2, 2, and newtons are acting at , , and , respectively. If the system is equivalent to a couple, find the magnitude of its moment considering the positive direction is .

is a triangle, where , , and , and forces of magnitudes 64 N, 24 N, and 56 N are acting along , , and respectively. If the system of forces is equivalent to a couple, determine the magnitude of its moment.