Timeline for Regarding (regular) kinetic energy and rotational kinetic energy
Current License: CC BY-SA 3.0
9 events
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Jun 11, 2020 at 9:33 | history | edited | CommunityBot |
Commonmark migration
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May 16, 2016 at 22:17 | comment | added | YoTengoUnLCD | @Frobenius Thanks! After a while I understood that we were counting the energy of the system and not just that of the particle. It's all clear now. | |
May 16, 2016 at 22:16 | vote | accept | YoTengoUnLCD | ||
May 16, 2016 at 21:10 | answer | added | sammy gerbil | timeline score: 3 | |
May 16, 2016 at 21:08 | comment | added | Voulkos | You don't count the same thing twice : The 2nd part $\frac {I}{2}\omega^2$ concerns the kinetic energy of the rotating disc, not of the small particle. Here $\:I = \textit{moment of inertia of the disc around the axis of rotation}\:$. The 1rst part $\:\frac m 2 v^2\:$ is the kinetic energy of the rotating particle, expressed also as $\:\frac m 2 r^2 \omega^2\:$, where $\:m r^2\:$ is the "moment of inertia" of the small particle. | |
May 16, 2016 at 21:07 | answer | added | M. Enns | timeline score: 4 | |
May 16, 2016 at 19:52 | history | edited | Qmechanic♦ | CC BY-SA 3.0 |
deleted 12 characters in body; edited tags
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May 16, 2016 at 19:21 | review | First posts | |||
May 16, 2016 at 19:25 | |||||
May 16, 2016 at 19:19 | history | asked | YoTengoUnLCD | CC BY-SA 3.0 |