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Q: Make a scale drawing showing both the forces produced by the cables and the resultant force. Estimate the angle carefully or measure it with a protractor.

Supplement:

A person with an injured jaw has a brace below his chin. The brace is held in place by two cables directed at 65 above the horizontal. (See the figure.) The cables produce forces of equal magnitude having a vertical resultant of 2.30 upward.

I don't have a protractor and would like to go about the estimate mathematically. I am having trouble finding the right and left lengths. I am guessing the resultant vector is length 2.30N and 90 degrees? If someone could walk me through it for understanding that would be great.

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# Resultant Vector - Chin Brace

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