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Dinâmica

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• Resolver em ordem às acelerações:0.5N 1 =( W A g) a AN2aa1 −WBcos30°= −( WBg)aAsin 30( W g) a −Wcos30°= −( W g)AAAgW °=B cos302W+ W sin 30°=AABB(232.2ft s )( 12lb)cos302( 30lb) + ( 12lb) sin 30°°a AB°aA= 5.07ftsin 30°2saBA=aAcos30° +g sin 30°aBA=(2) (2) 5.07ft s cos30° + 32.2ft s sin 30°a BA= 20.5ft2s12 - 22

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