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Sol Cap 02 - Edicion 8

COSMOS: Complete Online

COSMOS: Complete Online Solutions Manual Organization System Chapter 2, Solution 32. From the solution to Problem 2.22: ( ) ( ) F5 = 3.83 kips i + 3.21 kips j ( ) ( ) F7 =− 2.39 kips i + 6.58 kips j ( ) ( ) F9 =− 8.46 kips i + 3.08 kips j ( 7.02 kips) ( 12.87) R =Σ F =− i + j ( ) ( ) 2 2 R = − 7.02 kips + 12.87 kips = 14.66 kips −1 12.87 α = tan ⎛ ⎜ ⎞ ⎟ = 61.4° ⎝−7.02 ⎠ R = 14.66 kips 61.4° ! Vector Mechanics for Engineers: Statics and Dynamics, 8/e, Ferdinand P. Beer, E. Russell Johnston, Jr., Elliot R. Eisenberg, William E. Clausen, David Mazurek, Phillip J. Cornwell © 2007 The McGraw-Hill Companies.

COSMOS: Complete Online Solutions Manual Organization System Chapter 2, Solution 33. From the solution to Problem 2.24: ( 48.0 lb) ( 90.0 lb) F OA =− i + j ( 112.0 lb) ( 180.0 lb) F OB = i + j OC =− ( 320 lb) − ( 240 lb) F i j ( 256lb) ( 30lb) R =Σ F =− i + j ( 256lb) ( 30lb) R = − + = 257.75 lb 2 2 tan 30 lb 256 lb α = − α =− 6.6839° R = 258 lb 6.68° ! Vector Mechanics for Engineers: Statics and Dynamics, 8/e, Ferdinand P. Beer, E. Russell Johnston, Jr., Elliot R. Eisenberg, William E. Clausen, David Mazurek, Phillip J. Cornwell © 2007 The McGraw-Hill Companies.

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