Moment of Forces about Point A help.

Click For Summary
SUMMARY

The discussion focuses on calculating the moment of forces about point A in a physics problem. The user struggles with their calculations, consistently obtaining results that are an order of magnitude too large (x10^3). Key equations referenced include the sum of forces in the X and Y directions, as well as the trigonometric functions cosine and sine applied to downward forces. The community is invited to provide detailed solutions and methodologies to assist in resolving the user's confusion.

PREREQUISITES
  • Understanding of static equilibrium principles
  • Familiarity with trigonometric functions in physics
  • Knowledge of moment calculations in mechanics
  • Ability to analyze free body diagrams
NEXT STEPS
  • Review the principles of static equilibrium in mechanics
  • Study the application of trigonometric functions in force resolution
  • Learn how to construct and analyze free body diagrams
  • Practice calculating moments of forces using various examples
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and static equilibrium, as well as educators looking for problem-solving strategies in force analysis.

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.
 

Similar threads

  • · Replies 24 ·
Replies
24
Views
2K
  • · Replies 9 ·
Replies
9
Views
1K
  • · Replies 7 ·
Replies
7
Views
1K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 22 ·
Replies
22
Views
3K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 8 ·
Replies
8
Views
4K
  • · Replies 97 ·
4
Replies
97
Views
6K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 7 ·
Replies
7
Views
1K