Moment of Forces about Point A help.

AI Thread Summary
The discussion focuses on calculating the moment of forces about point A, with participants sharing their approaches and equations used, such as the sum of forces in the X and Y directions. A user is struggling with their calculations, consistently obtaining results that are ten times larger than expected. They have provided a scanned copy of the question for reference and are seeking assistance with the problem. The conversation emphasizes the importance of correctly applying trigonometric functions to resolve forces. Collaborative problem-solving is encouraged to clarify the calculations and achieve the correct answer.
EIGHTSIX7
Messages
10
Reaction score
0

Homework Statement


Determine the moment of forces about point a.


Homework Equations


Sum of Forces of X
Sum of Forces of Y
Ma=0?
cos(<)(force downwards)
sin(<)(force downwards)


The Attempt at a Solution


Countless times, keep getting an answer x10^3 too big.

Attached is a scanned copy of the question.

Thanks for the help.
 

Attachments

Physics news on Phys.org
Let's see your work.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Drone dragging a hose behind it
Replies
24
Views
1K
Minimum force to tip the bin over
Replies
7
Views
924
Need Help with Physics Moment and Force Questions
Replies
7
Views
2K
How is the moment at A using the Force 1200N calculated?
Replies
22
Views
2K
Solve Force & Moment Homework: Why Don't Consider P at C?
Replies
1
Views
1K
Draw the shear force and bending moment diagrams for beams
Replies
8
Views
4K
Wooden sphere rolling on a double metal track
2
Replies
97
Views
5K
Equilibrium of Rigid Bodies. Rafter. What is moment arm?
Replies
1
Views
3K
Forces applied to a spring-loaded gas pedal
Replies
7
Views
1K
Moment about a point of a hammer
Replies
9
Views
4K

Hot Threads

Recent Insights

Back
Top