Questions tagged [classical-mechanics]
Classical mechanics discusses the behaviour of macroscopic bodies under the influence of forces (without necessarily specifying the origin of these forces). If it's possible, USE MORE SPECIFIC TAGS like [newtonian-mechanics], [lagrangian-formalism], and [hamiltonian-formalism].
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Conceptual doubt related to motion of two blocks on an incline
I was solving the following question:
In the arrangement shown in the figure all surfaces are smooth. Select the correct alternative(s)
(A) for any value of θ acceleration of A and B are equal
(B) ...
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Closing Door on a Moving Car [closed]
I am working a problem from the 3rd edition of Goldstein's Classical Mechanics (problem 5.23): An automobile is started from rest with one of its doors initially at right angles. If the hinges of the ...
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Does A Pivot Exert A Force
On a frictionless horizontal table, a uniform stick is pivoted at its middle, and a ball collides elastically with one end, as shown in Fig. 8.10. During the collision, what are all the quantities ...
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Interesting Aerofoil Logical Fallacy
I am new to physics in general having just finished AP Mechanics and have limited knowledge of how fluid dynamics work. But just using forces and a simplified understanding of drag if have come to the ...
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Buoyancy basics
I was solving this question and in the solution, they have applied a buoyant force exerted by kerosene. It makes sense by the basic definition of the buoyant force from Archimedes principle. However, ...
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Fredric Schuller's lecture notes for Classical Mechanics
In 2014, Dr. Friedric Sculler taught a course in German at FAU on classical mechanics. In one of the classes, he mentions sharing his detailed notes with the class which are in English.
The link for ...
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Would a homogeneous rod on a fulcrum oscillate or remain at rest after displacement?
If I take a homogeneous rod, put it on a fulcrum, push one side down in a controlled way and release very carefully won't the rod just stay at rest in that new position? ChatGPT says that it would ...
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Force due to pressure on a curved surface/wall [closed]
Most solutions that I found on the internet concerning the net force due to pressure on a curved wall were using free-body diagrams and I could not find any using a calculus approach
Assuming the ...
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Two cylinders rolling without slipping on planks
I am struggling with the following setup.
This setup consists of three massless planks and two massive cylinders, as can be seen from the figure. The lower plank is pulled with a force $F$ that ...
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Are there any experiments that examine Hamilton's Principle directly?
Or can it be examined?
I 'd glad if you can share some ideas about "principles" in general.
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Drawbacks of Quasi-Static process for lifting a block
Definition of Quasi-static: A quasi-static process is a thermodynamic or mechanical process that occurs very slowly, allowing the system to remain in a state of equilibrium at all times.
While ...
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Is there a straightforward simplified proof of energy conservation from time translation symmetry?
Electric charge conservation is easily proven from electric potential gauge symmetry, as follows:
The potential energy of an electric charge is proportional to the electric potential at its location.
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Connection between dispersion relation and symmetries of the Hamiltonian
I am having trouble understanding intuitively the connection between the dispersion relation and the symmetries of the Hamiltonian. For example, suppose we have a lattice and there are four sub-...
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Does electric and magnetic field from electromagnetic radiation are 2D based? [closed]
I'm getting into physics, specially in electromagnetism.
When we're talking about electromagnetic radiation. Does it has a 2D shape when it's propagating through space?
Does Maxwell's equations ...
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Strogatz's condition on definition of energy
In, Nonlinear Dynamics And Chaos, 2nd edition page 160, by Steven H. Strogatz, he writes
Let’s be a bit more general and precise. Given a system $$\dot x =f(x),$$ a conserved quantity is a real-...
