All Questions
Tagged with equilibrium forces
153
questions
0
votes
1
answer
71
views
Statics problem from classical mechanics
I was solving David Morin's book on classical mechanics.
In the solution for the second part of the "a" part of the question, why is the normal force defined as $Ndθ$ and not just $N$? Is ...
- 19
15
votes
6
answers
2k
views
How does this tensegrity table work?
I have assembled below a desk toy which seems to defy laws of physics at first glance (objects can be placed on top of it up to a certain limit, since it is already under strain).
The toy is in fact ...
- 1,410
1
vote
2
answers
60
views
An object is connected to the end of a spring and is immersed in water. What are the forces acting on the object? [closed]
The actual question is
A copper piece of mass 10g is suspended by a vertical spring. The spring elongates 1 cm over it's natural length to keep the piece in equilibrium. A beaker containing water is ...
- 91
2
votes
1
answer
49
views
Investigating the stability of a wooden block
Consider the above experimental design. At the end of the strip, at point $p$, a mass $m$ is attached, the stability of the wooden block above is determined by the angle $θ$ at which the block topples ...
- 318
1
vote
2
answers
169
views
The forces acting on the tensegrity structure
Are these the only forces acting on the body. I assumed the COM to be somewhere there in between. since the tension in main string doesnt perfectly coincide with COM theres a small torque being ...
- 11
-1
votes
1
answer
74
views
Static equilibrium of linkage [closed]
I have a question regarding the calculation of the forces of a linkage in static equilibrium. Consider the mechanism in the figure. Points A and B can move in all 3 directions (hence they have 3 DoFs ...
- 101
0
votes
1
answer
50
views
Rotational Equilibrium With Forces acting on only two points
Imagine a rod that is held at angle to the vertical by some hook. The rod is in equilibrium. There would be three forces on this rod - Normal contact, Friction, and the weight of the rod.
I struggle ...
- 568
-1
votes
3
answers
59
views
Contradicting Basic and Force definitions of types of Equilibrium
This question is neither a check my work question and nor a homework question, it is a conceptual doubt in a question I found and I have attached a solution just for reference to show how I drew my ...
- 201
-1
votes
1
answer
108
views
Identification of Stable, Unstable, Neutral Equilibrium
Definition of Stable Equilibrium - When a particle is displaced infinitesimally, it returns back to the mean position and starts oscillating about it. Unstable Equilibrium - When a particle is ...
- 201
0
votes
1
answer
27
views
Equilibrium in all directions
Let's say the origin is an equilibrium position for a particle.
If we have a case such that a slight displacement of the particle in x direction makes it return to the mean position (stable ...
- 201
0
votes
2
answers
2k
views
Definition of Stable, Unstable and Neutral Equilibrium using Force
So I have read that a particle is in Stable Equilibrium when the potential energy is minimum, Unstable Equilibrium when the potential energy is maximum and Neutral Equilibrium when the potential ...
- 201
0
votes
0
answers
123
views
Calculate weight distribution on 2D plane
I am trying to figure out how I can have a formula for the weight distribution on a square. But let me just describe what I am doing,
We have the classical horizontal beam support problem
And I we can ...
- 13
0
votes
5
answers
966
views
What is equilibrium position in a pendulum? Will there be only one equilibrium position in the motion of a pendulum?
Equilibrium position of a pendulum is defined as the position where no external force acts on the body and if no force is applied, it remains at rest. In the image, isn't gravity acting everywhere, ...
0
votes
0
answers
65
views
2 rods connected at a pivot and attached to a spring
I have a question concerning this problem
First I calculate F1 by taking the origin at F2 and imposing equilibrium for the torque thus getting $ F_1 = \frac{a}{a+b} F $ and similarly for F2, then I ...
2
votes
1
answer
71
views
Free body diagram of two cards leaning against each other [closed]
here is my body diagram:
he have the two weights two normals and two frictions however I think I am missing something becaused I only have cosine components when analysing the torque eq with respect ...
- 111