What Are Some Tips for Starting Moment Couple Problems?

  • Thread starter Thread starter caddyguy109
  • Start date Start date
  • Tags Tags
    Couple Moment
Click For Summary
SUMMARY

This discussion focuses on solving moment couple problems in statics, specifically using free body diagrams and the principles of equilibrium. Key methodologies include drawing free body diagrams, applying the equations ΣF = 0 and ΣM = 0, and calculating moments about the center of mass. Participants emphasize the importance of understanding the geometry involved, particularly the lever arms associated with forces acting on rollers. The conversation highlights the necessity of clarity in defining forces and moments to solve for unknowns effectively.

PREREQUISITES
  • Understanding of free body diagrams in statics
  • Familiarity with equilibrium equations: ΣF = 0 and ΣM = 0
  • Knowledge of moment calculations and lever arms
  • Basic principles of mechanics involving forces and moments
NEXT STEPS
  • Study the application of free body diagrams in complex systems
  • Learn about calculating moments about the center of mass
  • Explore the concept of lever arms in detail
  • Practice solving various moment couple problems with different geometries
USEFUL FOR

Students and professionals in engineering, particularly those studying mechanics or statics, as well as anyone involved in solving moment couple problems in practical applications.

  • #31
Not sure what you are doing with the angles. Both moments act in the x-y plane, so there shouldn't be any \hat{k} involved. The first moment acts in the -x direction (- \hat{i}); the second moment is at a 60 degree angle to the x-axis (find the components of that vector: it will have both an x and a y component).
 
Physics news on Phys.org
  • #32
:rolleyes: ...yeah, I realized that after I stared at it for a while.

Thanks again for ALL the help. My internet died around 2:30pm yesterday so I couldn't get back on at all until this morning, so I basically had to stare at it for a while, ask a few people--and am pretty sure I got it.
 

Similar threads

How to get mag. & angles of resultant couple moment
  • · Replies 1 ·
Replies
1
Views
5K
Question about Statics problems involving frames
  • · Replies 4 ·
Replies
4
Views
2K
Is my approach correct for the 3D moment couple problem?
  • · Replies 21 ·
Replies
21
Views
26K
Moment couple (opposite direction on same line)
  • · Replies 3 ·
Replies
3
Views
2K
Solve Box Tipping Problem: μk=0.2, Weight=50kg
  • · Replies 12 ·
Replies
12
Views
3K
Block drifts off between two moving planes through friction
  • · Replies 21 ·
Replies
21
Views
1K
How Do Angular and Linear Velocities Relate in Cyclist Work-Energy Problems?
  • · Replies 25 ·
Replies
25
Views
2K
Magnetic dipole moment and integration surfaces (Introductory Electromagnetics - Magnetistatics)
  • · Replies 4 ·
Replies
4
Views
955
What is bending moment? Is it a moment couple? Why?
  • · Replies 9 ·
Replies
9
Views
3K
Understanding The Concept Of Moments
  • · Replies 6 ·
Replies
6
Views
2K