Am I ready for Classical Mechanics?

AI Thread Summary
Concerns about readiness for a Classical Mechanics course, particularly one focusing on Hamiltonian and Lagrangian mechanics, were raised by a second-year student. The student, who has completed necessary math courses and some introductory physics, is apprehensive about not having taken several second-year physics courses that are not prerequisites for the class. Responses indicate that these additional courses are not essential for success in upper-division classical mechanics. It was noted that while the textbook, "Classical Mechanics" by Taylor, presents challenging problems, familiarity with the required math concepts is key to tackling them. Students can expect a more demanding workload in upper-division courses, but with effort and practice, they can keep up. Overall, the consensus is that the student is well-prepared to take the course despite their concerns.
Flipmeister
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Am I "ready" for Classical Mechanics?

Hello again, PF. I have a question about the Classical Mechanics course I'm taking this coming fall.

Thanks to having a few cruddy enrollment times in the past year, I've been taking my courses a bit out of order, but without any problems or conflicts. In fact, it's helped me load up on math classes and now I'm a couple math classes ahead of my peers. Now, I've enrolled in a Classical Mech. course for the upcoming quarter that involves Hamiltonian/Lagrangian mechanics. I'm taking it a whole year early (I'm now a 2nd year student; the class is for 3rd years but doesn't require a 3rd year standing), only because none of the next five physics courses I should be taking are available for this quarter, and I've already met the prerequisites for the course (i.e. completed some first year physics, Linear Analysis I, and all the Calculus courses).

Nevertheless, I'm worried that, since it is a class pretty much only 3rd years take, there may be some expectation of me to have taken those five 2nd-year courses I haven't taken. They are Modern Physics I and II, Physics on the Comp., Instrumentation in Exp. Physics, and Electrical Measurements Lab. None of them are prerequisites, and it doesn't look like I need any of these courses to take a Classical Mechanics class, but I wouldn't know to be sure. There is no in-depth course description available as far as I know.

Should I not take this course so early, or am I good to go despite not having taken those courses?

Also, I have attempted reading and doing problems from the course textbook (Classical Mechanics by Taylor) on my own, and they seem very difficult. I can't tell if it is because I'm just dumb or I perhaps I just need a teacher's help to get me going. Are these upper-division courses usually fast-paced?

Thanks in advance for your input. Any advice at all will be much appreciated. :-p


TL;DR:
Are Calc, basic physics, and an intro class to ODE's and Linear Algebra really ALL I need for a course involving Hamiltonian/Lagrangian mechanics? And will I, a 2nd year, be able to keep up with this 3rd year course? :confused:
 
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Flipmeister said:
I'm worried that, since it is a class pretty much only 3rd years take, there may be some expectation of me to have taken those five 2nd-year courses I haven't taken. They are Modern Physics I and II, Physics on the Comp., Instrumentation in Exp. Physics, and Electrical Measurements Lab.

None of those classes sound at all relevant to upper-division classical mechanics, so don't worry about not having taken these.

Flipmeister said:
Also, I have attempted reading and doing problems from the course textbook (Classical Mechanics by Taylor) on my own, and they seem very difficult.

Did these problems invoke any math concepts you haven't seen before? If not then you're ready to tackle them; it will just take effort. You can expect problem sets in upper division physics courses to be significantly more time-consuming than in your previous courses.

Flipmeister said:
Are Calc, basic physics, and an intro class to ODE's and Linear Algebra really ALL I need for a course involving Hamiltonian/Lagrangian mechanics?

Yup.
 
The_Duck said:
Did these problems invoke any math concepts you haven't seen before? If not then you're ready to tackle them; it will just take effort. You can expect problem sets in upper division physics courses to be significantly more time-consuming than in your previous courses.

Some concepts were unfamiliar, but the book offered a brief introduction to them in any case. I guess I'll have to practice doing these faster then. Thanks for the reply. :)
 
Hey, I am Andreas from Germany. I am currently 35 years old and I want to relearn math and physics. This is not one of these regular questions when it comes to this matter. So... I am very realistic about it. I know that there are severe contraints when it comes to selfstudy compared to a regular school and/or university (structure, peers, teachers, learning groups, tests, access to papers and so on) . I will never get a job in this field and I will never be taken serious by "real"...
Yesterday, 9/5/2025, when I was surfing, I found an article The Schwarzschild solution contains three problems, which can be easily solved - Journal of King Saud University - Science ABUNDANCE ESTIMATION IN AN ARID ENVIRONMENT https://jksus.org/the-schwarzschild-solution-contains-three-problems-which-can-be-easily-solved/ that has the derivation of a line element as a corrected version of the Schwarzschild solution to Einstein’s field equation. This article's date received is 2022-11-15...

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