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8 months ago

Sol Cap 02 - Edicion 8

COSMOS: Complete Online

COSMOS: Complete Online Solutions Manual Organization System Chapter 2, Solution 74. (a) F ( ) x =− 810 lb cos 45° sin 25° =− 242.06 lb F y =− ( 810 lb) sin 45° F =−242 lb ! x =− 572.76 lb F =−573 lb ! y F z = ( 810 lb) cos 45° cos 25° = 519.09 lb F = 519 lb ! z (b) cosθ x = −242.06 lb 810 lb or θ x = 107.4° ! cosθ y = −572.76 lb 810 lb or θ y = 135.0° ! cosθ = z 519.09 lb 810 lb or θ z = 50.1° ! 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 75. (a) F ( ) x = 900 N cos30° cos 25° = 706.40 N F y = ( 900 N) sin 30° F = 706 N ! x = 450.00 N F = 450 N ! y F z =− ( 900 N) cos30° sin 25° =− 329.04 N F =−329 N ! z (b) cosθ = x 706.40 N 900 N or θ x = 38.3° ! cosθ = y 450.00 N 900 N or θ y = 60.0° ! cosθ z = −329.40 N 900 N or θ z = 111.5° ! 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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