To find the angle of two combined forces in 2D motion, first calculate the net force components along the x and y axes. In this case, Jack exerts 30 N and Michael contributes approximately 28.3 N in the y-direction, resulting in net force components of 58.3 N (x-direction) and 28.3 N (y-direction). The total net force can be calculated using the Pythagorean theorem, yielding approximately 64.8 N. To find the angle between the forces, use the tangent function, where tan(theta) equals the ratio of the y-component to the x-component. This approach simplifies the problem to basic trigonometry for determining the angle.