Calculate the magnitude and direction (i. e., the angle with respect to the positive H-axis, measured positive as counter-clockwise) of the total force acting on M. Notice that the arrows representing the forces end on grid intersections.

The graphics in the attachment is part of the question, which was incomplete.

Fr = 102N and angle of approximately 11°.

Explanation: From the attachment, it is observed that from the three forces acting on M, two are perpendicular. So to find them, we have to show their x- and y- axis components. From the graph:

Fx = 70+40-10 = 100

Fy = 40-20 = 20

Now, as the forces form a triangle, the totalforce is:

Fr =

Fr =

Fr = ≈ 102N

To determine the angle requested, we use:

arctg H =

arctg H =

H = tg 0.2 ≈ 11°.