How do I compute the moment in my statics assignment?

AI Thread Summary
The discussion focuses on a statics assignment where the main challenge is computing the moment and determining reaction forces in a given system. Participants highlight the importance of drawing a free-body diagram and listing relevant equations to clarify the problem. There is a debate about whether a left-hand side member is a zero-force member, with some supporting this notion based on previous insights. The presence of a couple and a moment applied at a specific point is confirmed, while the dimensions of a component are clarified as a 6-inch rod. Overall, the conversation emphasizes the need for a complete problem statement and careful analysis to solve the assignment effectively.
darrulls
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Statics assignment a bit urgent

So here is my assignment. i wish that someone could help me.

now i know that this system is statically determinate and that i can compute the forces. my problem is that i cannot figure out how i can compute the moment. the Aim of the assignment is to find all the reactional forces in the members.

i was also thinking that the left hand side member could be a zero force member. i don't know whether i am right or wrong
 

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Your image is only partial. Where is the load or couple applied? I see something about 10kN-m, that's about it...please indicate the whole problem statement. Is that a triangular solid yoke plate with a hole in the center?
 


yes there is only a moment applied on the bottom right hand corner. and the triangle i think is assumed to weightless and solid. i don't think the hole in the centre would affect the force resultants.
 


darrulls said:
yes there is only a moment applied on the bottom right hand corner. and the triangle i think is assumed to weightless and solid. i don't think the hole in the centre would affect the force resultants.
Oh, I didn't see that couple down there, my eyes are not that good ; it appears the plate is sliding at its left along a frictionless rod I guess, but I do have another question with strained eyes, I see a number 6 near the top of the triangle, at the cord...no units can I see...6 what??
 
darrulls said:
i was also thinking the left-hand side member could be a zero-force member.

Very good, darrulls! Now draw your free-body diagram, and show the reaction forces acting on it. You must list relevant equations, and show your work; then someone might check your math. The 6 means 6". You know the 6 indicates a 6" rod, not a cord, because, if it were a cord, the problem would be dynamics, not statics.
 


Hi do you really think that the left hand side member is a zero force member. if that is so why?
 
Yes, I currently do. I think you know why. I saw your insightful answer in another thread.
 

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