This preview shows pages 1–7. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Looking into FBD (b), you get ENGR210, Fall 2011 5 These relations (Bx, By, Cx and Cy) means that the FBD (b) is equivalent to Therefore, in summary, even if you dont recognize twoforce members in a system, you CAN solve for unknowns IF you separate the system into subsystems (like (a) and (b) above). However, if you use a whole system without knowing twoforce members, you have often difficulty solving for unknowns (like ( ) above). Note that drawing FBDs for twoforce members (without knowing twoforce members), writing equilibrium equations with extra unknowns and solving for the unknowns take more time. So, be efficient , by identifying twoforce members. ENGR210, Fall 2011 6 ENGR210, Fall 2011 7...
View Full
Document
 Fall '08
 KO
 Statics

Click to edit the document details