Rotational Equilibrium Problem

Click For Summary
SUMMARY

The discussion centers on a rotational equilibrium problem involving a bar subjected to four forces. The correct answer is established as 61.25 N, while one participant incorrectly calculated it as 20.09 N. The discrepancy arises from the failure to account for all four forces acting on the bar, as only three were considered in the initial attempt. This highlights the importance of identifying all forces in rotational equilibrium scenarios.

PREREQUISITES
  • Understanding of rotational equilibrium principles
  • Familiarity with force diagrams
  • Knowledge of vector addition in physics
  • Basic concepts of torque and its calculation
NEXT STEPS
  • Study the principles of rotational equilibrium in detail
  • Learn how to construct and analyze force diagrams
  • Explore torque calculations and their applications
  • Review examples of problems involving multiple forces acting on rigid bodies
USEFUL FOR

Students studying physics, educators teaching mechanics, and anyone involved in solving problems related to rotational dynamics.

JoeyBob
Messages
256
Reaction score
29
Homework Statement
See attached
Relevant Equations
T=r x F
See attached file. Answer is supposed to be 61.25 N, I get 20.09 N.
 

Attachments

  • Question.PNG
    Question.PNG
    10.5 KB · Views: 187
  • Attempted solution.jpg
    Attempted solution.jpg
    32.1 KB · Views: 184
Physics news on Phys.org
There are 4 forces acting on the bar. You show only 3 in your attempt.
 
kuruman said:
There are 4 forces acting on the bar. You show only 3 in your attempt.
Thanks, I got it.
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
Replies
6
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 7 ·
Replies
7
Views
1K
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 7 ·
Replies
7
Views
4K
Replies
6
Views
3K
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 8 ·
Replies
8
Views
2K
Replies
14
Views
2K