1. Problem: The following coplanar forces pull on a ring: 200 N at 30 degrees, 500N at 80 degrees, 300N at 240 Degrees, and an unknown force. Find the magnitude and direction of the unknown force for the ring if the ring is in equilibrium.(adsbygoogle = window.adsbygoogle || []).push({});

2. Solution(So Far): Using the line 0 Degrees as the x-axis and 90 Degrees as the y-axis I got 351 N for the force (correct according to the book) however I am unable to find what angle it should be at. For the angle I got 71.7 Degrees [The book lists the answer as 71.7+180=351]. After seeing this answer I thought about it and I understand turning it 90 Degrees but why 180 degrees?

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# Homework Help: Forces acting on a ring. (Help with direction)

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