© 2010 The McGraw-Hill Companies, Inc. All rights reserved. Vector Mechanics for Engineers: Vector Mechanics for Engineers: Statics Statics Ninth Editio n ANALISIS DE ESTRUCTURAS (ARMADURAS). Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 1)Datos : P 1 =500lb ; P 2 =100lb +383.86lb -271.43lb +285.71lb E=13.13kN