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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 80. (a) F = 180 N x With Fx = Fcos60° cos35° 180 N = F cos60° cos35° or F = 439.38 N F = 439 N ! (b) cosθ = x 180 N 439.48 N θ = 65.8°! x ( ) F = 439.48 N sin 60° y F y = 380.60 N 380.60 N cosθ y = 439.48 N θ = 30.0°! y ( ) F =− 439.48 N cos60° sin 35° z F =− 126.038 N z cos θ z = −126.038 N 439.48 N θ = 106.7°! z 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 81. 2 2 2 x y z F = F + F + F ( 65 N) ( 80 N) ( 200 N) 2 2 2 F = + − + − F = 225 N ! Fx cosθ x = = F 65 N 225 N θ = 73.2°! x cosθ y Fy = = F −80 N 225 N θ = 110.8°! y Fz cosθ z = = F − 200 N 225 N θ = 152.7°! z 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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