3 ms·
I'm not sure what the author's target audience is, but: > But we know from high school physics that a = v' = p'' It would be exceedingly rare to see "p" used
by pflats 7y ago
I'm not sure what the author's target audience is, but:
> But we know from high school physics that a = v' = p''
It would be exceedingly rare to see "p" used as the position variable in high school physics - it's almost exclusively reserved for momentum.
Most high school students do 1D physics with position as "x". Those who go on to study more physics usually use "s" as their displacement function/vector and maybe "r" as a position vector.
(Also, the overwhelming majority of high school physics students never touch calculus-based physics -- only about 50-60 thousand students take the AP Physics C exam each year. 5 times that take AP Physics 1, and even more take non-AP Physics.)
- formalsystem 7y agoThat's really helpful, I'll think about how to reword this. We covered calculus physics in Lebanon which uses the French Baccalaureate program so was making some non global assumptions.
- deleted 7y ago[deleted]
- neoliberal_dad 7y agoSpeaking as someone who came from a less-than-stellar high school, referring to concepts as being "from high school X" can be pretty demoralizing to hear, and it's almost never necessary to mention. Consider using "introductory" instead, unless your audience is explicitly only people who went to advanced high schools.
- madhadron 7y agoI usually see is q for position, p for momentum, and a for acceleration. But that might be too much time in Landau and Lifshitz.
- evanb 7y agoThis is relatively standard notation. To be very attentive during an exercise in Lagrangian-formulated quantum mechanics you had better make sure to dot your qs and cross your hs.