Scalar Moment around a point due to a force

AI Thread Summary
The discussion focuses on calculating the moment of a force using the scalar method, specifically MO=Fd, where F is the force magnitude and d is the perpendicular distance. The user initially calculated the components of the force and attempted to find the moment about point O, but faced difficulties with their calculations. After several incorrect attempts, the user ultimately resolved their issue independently. The conversation highlights the importance of correctly applying the scalar method and understanding the geometric relationships involved. The user’s final resolution indicates that they successfully found the correct approach to the problem.
Marvels
Messages
6
Reaction score
0

Homework Statement


In two dimensions, the moment of a force can be calculated using the scalar method, MO=Fd, where F is the magnitude of the force and d is the perpendicular distance from the line of force to the point where the moment is being considered.

Using the scalar method, calculate the moment about O due to F.

Homework Equations



MEng_SD_4-4_Intro.jpg
[/B]
r = 2.50 ft and F has magnitude F = 580 lb.

The Attempt at a Solution



I've calculated the x and y components of the force, each being 410 lb, due to the angle being 45
Also using the angles I calculated the x and y distances being 1.77 and then 1.77 + 2.5?

I do the f*d multiplied and added up for 1.77*410*2 and it's wrong
I then divided that by 2, and it was wrong.
I then did the (2.55+1.77*410)+(1.77*410) and it says that's wrong too.

What am I doing wrong?
 
Physics news on Phys.org
NEVERMIND I SOLVED IT, SORRY
 

Similar threads

Engineering Solving for the Reaction Force by taking Moment about a Point
Replies
1
Views
2K
Engineering Statics, Finding Reaction forces for A and H
Replies
6
Views
2K
Engineering Instantaneous Center of Rotation (Polplan in german) and STATICS
Replies
1
Views
1K
Engineering Solving a Moment Vector Direction Problem: An Example from Statics Textbook
Replies
2
Views
2K
Engineering Moment of a force about point O
Replies
4
Views
3K
Engineering Calculating the Moments on the Walls of a Tank filled with Water
Replies
2
Views
3K
Equivalent force and couple moment
Replies
2
Views
2K
Engineering Loads on a shaft with V-Belts
Replies
2
Views
2K
Why is this force considered in the moment equation?
Replies
4
Views
2K
Engineering Equilibrium equations of elastic body
Replies
31
Views
3K

Hot Threads

Recent Insights

Back
Top