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Need Help In Getting Startedby Double A
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#1
Oct1804, 05:18 PM

P: 33

In my statics class we are studying Rigid body equilibrium and when it got to 3D I get a little lost. Below are some homework questions I'm having a hard time starting. I get the free body diagrams but don't know where to go from there. I find that there are more unknowns than I have equations for.
I have provided links for the reactions that happen at certain types of connections. I also apologize for the bad scanning job on a couple of the images. Reactions: Table 1 Table 2 Questions: Question 1 Question 2 Question 3 I appreciate any help. I need to finish this assignment asap. 


#2
Oct1804, 06:50 PM

Sci Advisor
HW Helper
P: 2,537

Are you remembering to account for Torque?



#3
Oct1804, 07:24 PM

P: 33

I am accounting for moments (tourque). The 6 equations that I have to use are:
1) Force Equations: [tex]\Sigma F x =0[/tex] [tex]\Sigma F y =0[/tex] [tex]\Sigma F z =0[/tex] 2) Moment Equations [tex]\Sigma M x =0[/tex] [tex]\Sigma M y =0[/tex] [tex]\Sigma M z =0[/tex] 


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