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7 months ago

Sol Cap 02 - Edicion 8

COSMOS: Complete Online

COSMOS: Complete Online Solutions Manual Organization System Chapter 2, Solution 76. (a) ( ) F =− 1900 N sin 20° sin 70° x =− 610.65 N F =− 611 N ! x ( ) F = 1900 N cos 20° y = 1785.42 N F = 1785 N ! y ( ) F = 1900 N sin 20° cos70° z = 222.26 N F = 222 N ! z (b) cos θ x = −610.65 N 1900 N or θ x = 108.7°! 1785.42 N cosθ y = 1900 N or θ y = 20.0°! cosθ = z 222.26 N 1900 N or θ z = 83.3°! 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 77. (a) ( ) F = 180 lb cos35° sin 20° x = 50.430 lb ( ) F =− 180 lb sin 35° y F = 50.4 lb ! x =− 103.244 lb F =− 103.2 lb ! y ( ) F = 180 lb cos35° cos 20° z = 138.555 lb F = 138.6 lb ! z (b) 50.430 lb cosθ x = 180 lb or θ x = 73.7°! cos θ y = −103.244 lb 180 lb or θ y = 125.0°! 138.555 lb cosθ z = 180 lb or θ z = 39.7°! 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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