Two forces, F₁ and F₂, act on a stationary point. F₁ has a magnitude of 10.0 N directed along the positive x-axis. The resultant force R, found by adding F₁ and F₂, has a magnitude of 5.0 N and is directed at an angle of 150° counterclockwise from the positive x-axis.
What is the magnitude and direction (angle measured CCW from +x-axis) of F₂?
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