Question

Bar AB rotates at a constant 10 rad/s in the counterclock-wise direction. Determine the angular accelerations of BC and CE, a

Find alpha BC, alpha CE. and aE?

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Solution LCB Given data WAB 10 radils 400 mm deo D E с t ? X b c XCE *** Too mm 4oomin 760 ml ар (AB) WAB -) Velocity of B VBFitom equations and 2 (0.403@8c —4) î + 007 WBC) Equate î and ŷ components 0.403 OBC -400 on both sides = 7 WBC 4 0-403 OBC 9A aco --69.16] +39.75.3 +0.403 4CB Tootd cp A CB 669-16 +0.403 0cp) + (39.75 ac - aco tão 669-16 +0.40.3%ck) î + (39.157074cpequate h components --0-25+ 0.70 CB 0.4&co 6.25 +0.7(471-08) 20:4&CD 329.54 .4 ccp ded ) Хch = 823.77 rados Angular accelerat

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