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Sol Cap 02 - Edicion 8

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COSMOS: Complete Online <strong>Sol</strong>utions Manual Organization System<br />

Chapter 2, <strong>Sol</strong>ution 13.<br />

We observe that force P is minimum when α = 90 ° .<br />

Then:<br />

(a) P = ( 80 lb)<br />

sin 35°<br />

And:<br />

(b) R = ( 80 lb)<br />

cos35°<br />

or<br />

P = 45.9 lb !<br />

or R = 65.5 lb !<br />

Vector Mechanics for Engineers: Statics and Dynamics, 8/e, Ferdinand P. Beer, E. Russell Johnston, Jr.,<br />

Elliot R. Eisenberg, William E. Clausen, David Mazurek, Phillip J. Cornwell<br />

© 2007 The McGraw-Hill Companies.

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