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].
20 questions from the last 30 days
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Mass lifting off a harmonic oscillator
Consider this setup:
A classic, harmonic oscillator made of a spring with spring constant $k$ and a mass $m_1$ that oscillates vertically. $m_1$ is formed like a horizontal plate, and on the plate ...
-6
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I need help on a conceputal problem for kinetic friction problem [closed]
If the coefficient of friction were to increase, how would this affect the total travel time? Explain why by referring to both intervals of motion. Use at least one physics representation as part of ...
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1
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49
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Measuring mechanical power of a PMDC electromotor
So I have this problem. I want to measure the efficiency of an experimental PMDC motor. As you know 𝜂 = P_out / P_in, in the case of a PMDC: 𝜂 = P_mech / P_el. P_el = VI, but P_mech is a problem. I ...
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Experimental verifications of relativity “in the classical limit”? [closed]
Note: This question is pretty basic and therefore probably has been asked before in another form -- please let me know which question this is a duplicate of in that case. (I couldn't find it myself.)
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I need help with Spivak's Mechanics book, chapter 1 question 16 part c [closed]
I'm having trouble solving specifically this part of the problem. Could you guys give me any tips on how to solve this? Preferably multiple with escalating levels of help, then a final full solution ...
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47
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Is it possible to balance yourself on one static wheel? [closed]
A friend and I are trying to understand how to think about the following scenario. Consider a person on a unicycle on flat ground, with a blocked wheel (the wheel cannot rotate relative to the axle). ...
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26
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Accounting for magnetic forces in Lagrangian mechanics [duplicate]
For conservative forces the Euler-Lagrange equation is used to find the relevant details about the system. However magnetic forces are not conservative do not perform any work on an moving charged ...
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63
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Which orientation of a truncated cone will drain faster? [duplicate]
A container shaped like a truncated cone (frustum) as in cylinder-like shape where one end has a larger radius than the other. Both orientations contain the same volume of water, and the outlet hole (...
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4
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On the meaning of the radial coordinate in the simplification of the Two-Body Problem. Inertial or non-inertial reference frame?
When presented with the two-body problems, we usually start from Newton's 2nd equations for the two bodies:
$$
\begin{split}
m_1 \mathbf{\ddot{r}}_1 &= f(r) \mathbf{\hat{r}}, \\
m_2 \mathbf{\ddot{...
- 321
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0
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Sufficiency and necessity of symplectic conditions for time dependent canonical transformation
I'm studying Goldstein's classical mechanics book. I'm currently reading section 9.4, in particular, reguarding symplectic formalism, the author first proves for restricted canonical transformations, ...
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