In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles

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In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the overhead view of Figure. The tire remains stationary in spite of the three pulls. Alex pulls with force FA of magnitude 220 N and Charles pulls with force F, of magnitude 170 N. Note that the direction of FC is not given. What is the magnitude of Betty's force FB?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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