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The uniform 39-kg bar OB is secured to the accelerating frame in the 20° position from the horizontal by the hinge at O and roller at A. If the horizontal acceleration of the frame is a 33 m/s, compute the force on the roller Fa and the magnitude Fo of the force supported by the pin at O 3330 1190 -20 A. Answers: Fo

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2 (287ース43.84 sub sh1.k ..n vda e, eino ⓣ 229 o

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