Help Me Solve this Problem: My Attempt Didn't Work

  • Thread starter Thread starter aaaa202
  • Start date Start date
  • Tags Tags
    Work
Click For Summary
SUMMARY

The discussion centers on calculating the net force exerted on a bar connected to a hinge, with a given force of 100 N. The user attempted to resolve the radial component of the force using trigonometric principles, calculating Frad as 60 N and subsequently determining a horizontal force of 36 N at point B. However, the user acknowledges that these calculations do not yield the correct answer, indicating a misunderstanding in the application of force components in relation to the hinge.

PREREQUISITES
  • Understanding of static equilibrium in mechanics
  • Knowledge of trigonometric functions and their application in force resolution
  • Familiarity with the concept of radial and horizontal force components
  • Basic principles of forces acting on beams and hinges
NEXT STEPS
  • Review the principles of static equilibrium and net force calculations
  • Study the application of trigonometry in resolving forces, specifically in mechanical systems
  • Learn about the mechanics of hinges and their role in force distribution
  • Explore examples of force component analysis in engineering problems
USEFUL FOR

Students and professionals in mechanical engineering, physics enthusiasts, and anyone involved in analyzing forces in static systems will benefit from this discussion.

aaaa202
Messages
1,144
Reaction score
2
I've attached a problem, which I have tried to solve unsuccesfully.
My attempt at a solution:
I would say that the force you exert on the bar is the radial component of your force with respect to the long beam. And using trigonometry to find the angle in the triangle you get:
Frad = 3/5*100N = 60N
And I then do that again at point B because I only want the horizontal part of the radial force. So I then get:
F=36N
And the bar must be pressing against the hinge with that same force.. But that's not the correct answer as far as I know - actually far from it.. So I am clearly thinking wrong some place :( help me
 

Attachments

  • Unavngivet.png
    Unavngivet.png
    28 KB · Views: 461
Physics news on Phys.org
aaaa202 said:
I would say that the force you exert on the bar is the radial component of your force with respect to the long beam.
The force exerted on the bar is given: F = 100 N. What's the net force on the bar?
 

Similar threads

Work done during a collision -- Change in Kinetic Energy & change in Momentum
  • · Replies 1 ·
Replies
1
Views
2K
Understanding work in translation and rotation of a magnetic dipole
  • · Replies 1 ·
Replies
1
Views
2K
Force pulling on a string at an angle with a block at the other end
  • · Replies 2 ·
Replies
2
Views
2K
Two vertical bars are connected at the bottom via resistance......
  • · Replies 7 ·
Replies
7
Views
2K
Work done on an Object - Pulling a wagon while lifting up at an angle
  • · Replies 1 ·
Replies
1
Views
2K
How Do Forces Interact in a Frictionless Hinged V-Beam System?
  • · Replies 4 ·
Replies
4
Views
10K
Find the mass M so that the net torque is zero
  • · Replies 6 ·
Replies
6
Views
3K
Motional EMF -- problem 7.7 in Griffith
  • · Replies 2 ·
Replies
2
Views
2K
Problem in Classical Mechanics
  • · Replies 1 ·
Replies
1
Views
2K
Solving Physics Problem with Angles and Trigonometry
  • · Replies 4 ·
Replies
4
Views
2K