Horizontal bar is used to support a 75-kg object between two walls

  • Thread starter Thread starter PHYSStudent098
  • Start date Start date
  • Tags Tags
    Horizontal Support
AI Thread Summary
A horizontal bar supporting a 75-kg object between two walls relies solely on friction at the ends to maintain equilibrium. The coefficient of static friction between the bar and the walls is 0.41, which is crucial for calculating the minimum force F required to keep the system at rest. To solve the problem, it is essential to draw a diagram illustrating all forces acting on the bar. Participants in the discussion emphasize the importance of visualizing the forces to understand the dynamics involved. The focus is on determining the minimum force needed for stability in this friction-dependent setup.
PHYSStudent098
Messages
6
Reaction score
0

Homework Statement



A horizontal bar is used to support a 75-kg object between two walls. The equal forces F exerted by the bar against the walls can be varied by adjusting the length of the bar. Only friction between the ends of the bar and the walls supports the system. The coefficient of static friction between bar and walls is 0.41. Find the minimum value of the forces F for the system to remain at rest.

Homework Equations



?

The Attempt at a Solution



I do not have an idea as to where I should start. Thank you.
 
Physics news on Phys.org
Draw the dagram. Mark in the forces, all of them.
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »

Similar threads

Temperature of a bar to produce certain force on wall
Replies
6
Views
2K
Torque Problem: Finding the weight of a horizontal bar
Replies
10
Views
2K
Find the frictional force between a block and a wall
Replies
5
Views
3K
What are the tension and angle of support rope for a cylinder about to slip?
Replies
18
Views
2K
The minimum applied force before an object slips off wall
Replies
4
Views
3K
Calculate tilt angle of a bar lifted via two ropes on fixed points
Replies
7
Views
3K
Physics Homework -- block pressed against a wall is sliding....
Replies
4
Views
3K
Calculating Horizontal Forces in a Stream of Sand Impacting a Wall
Replies
2
Views
8K
Vertical friction required of a block between two walls?
Replies
1
Views
2K
Using virtual work to find the angle of a bar supported by two planes
Replies
22
Views
2K

Hot Threads

Recent Insights

Back
Top