Timeline for Very interesting case, where energy is not conserved?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 27 at 8:19 | vote | accept | EagerToLearn | ||
| Mar 27 at 8:19 | comment | added | EagerToLearn | Thanks for helping me think. The idea that the particle cannot stop is hard to find. | |
| Mar 27 at 8:17 | comment | added | EagerToLearn | I got it. Actually it cannot happen and here's a simple explanation. The particle and the disc's COM will move the same distance during the collision, however, due to omega, the rim will move more than the particle. Initially particle was moving faster, but then the rim have to overtake, therefore at some point, the speed of rim will be faster than the particle. This clearly means that the direction of friction must change. When the speed of particle and rim (during collision time) becomes equal, friction stops, and therefore the particle cannot deaccelerate further.So the particle cannot stop | |
| Mar 25 at 12:57 | history | answered | Andrew Steane | CC BY-SA 4.0 |