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Sol Cap 02 - Edicion 8

COSMOS: Complete Online

COSMOS: Complete Online Solutions Manual Organization System Chapter 2, Solution 46. Free-Body Diagram: Σ = 0: − T cos25° − T cos 40° + ( 70 lb) cos10° = 0 (1) F x AB AC Σ = 0: T sin 25°− T sin 40°+ ( 70 lb) sin10°= 0 (2) F y AB Solving Equations (1) and (2) simultaneously: AC (a) T = 38.6 lb ! AB (b) T = 44.3 lb ! AC 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 47. Free-Body Diagram: (a) Σ F x = 0: − TAB cos30° + Rcos65° = 0 cos30 R = ° T AB cos65° Σ = 0: − T sin 30° + Rsin 65° − ( 550 N) = 0 F y AB T AB ⎛ cos30° ⎞ ⎜− sin 30° + sin 65° − 550 = 0 cos65° ⎟ ⎝ ⎠ or T = 405 N ! AB cos30° cos65° (b) R = ( 450 N ) or R = 830 N ! 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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