Forces, Moments and couple question, Can you please check its right

AI Thread Summary
The vertical component of the force at point F is confirmed to be -3 kN, likely a correction of a typo noted in a previous part of the discussion. To replace a force and a moment with a resultant force, the resultant must equal the original force F, and the distance d must be selected to ensure that F*d equals the moment M. Additionally, the direction of the moment created by F*d must align with the direction of the original moment M. This ensures that both the force and moment are accurately represented in the replacement. The discussion emphasizes the importance of maintaining both magnitude and direction in these calculations.
robm
Messages
3
Reaction score
0
Please find the attachment below. Thanks
 

Attachments

Engineering news on Phys.org
Regarding a): the vertical component of the 'force at F' equals -3 kN. (I assume it was just a typo, since you used -3 kN in b).)

Regarding c): how to replace a force and a moment with a resultant force (if I got that right)? Well, the resultant force must equal the force F, and the distance d between that resultant and the 'old' resultant force must be chosen so that F*d = M, i.e. it is replacine the moment M now, too. Further on, the 'direction' of the moment F*d must equal the 'direction' of the moment M.
 

Thread 'Race car suspension Class'

Posted June 2024 - 15 years after starting this class. I have learned a whole lot. To get to the short course on making your stock car, late model, hobby stock E-mod handle, look at the index below. Read all posts on Roll Center, Jacking effect and Why does car drive straight to the wall when I gas it? Also read You really have two race cars. This will cover 90% of problems you have. Simply put, the car pushes going in and is loose coming out. You do not have enuff downforce on the right...
View full post »
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
View full post »

Thread 'Cantilever help'

I'm trying to decide what size and type of galvanized steel I need for 2 cantilever extensions. The cantilever is 5 ft. The space between the two cantilever arms is a 17 ft Gap the center 7 ft of the 17 ft Gap we'll need to Bear approximately 17,000 lb spread evenly from the front of the cantilever to the back of the cantilever over 5 ft. I will put support beams across these cantilever arms to support the load evenly
View full post »

Similar threads

Can all bending moments be represented by force couples?
Replies
3
Views
2K
What is bending moment? Is it a moment couple? Why?
Replies
9
Views
3K
I have confusion understanding moments and couples
Replies
7
Views
2K
Calculate the forces acting on the Driven pulley (Centrifugal fan)
Replies
5
Views
1K
Understanding Couples, Moments & Forces
Replies
8
Views
2K
Engineering explanation please (pipe welded to a wall)
Replies
5
Views
1K
Convert moment force at lever support
Replies
1
Views
2K
Stiffened panel - moments of inertia
Replies
4
Views
2K
Any info on how the couple that found the safe while magnet fishing opened it?
Replies
11
Views
1K
Resolving Forces and Sizing Profiles in Structural Engineering
Replies
2
Views
1K

Hot Threads

Recent Insights

Back
Top