Timeline for Getting different answers by different methods for angle made by a pendulum moving with constant acceleration
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 24, 2023 at 15:11 | vote | accept | An_Elephant | ||
| Sep 24, 2023 at 15:11 | comment | added | An_Elephant | Okay thanks. I get it. | |
| Sep 24, 2023 at 15:08 | comment | added | trula | in reality you have friction in your car, as outside, so after some time you reach equilibrium same with the pendulum you pushed, and then it stays that way, since there is no force. Thats why you have to calculate the point of zero force . | |
| Sep 24, 2023 at 15:04 | comment | added | An_Elephant | So the pendulum will never be at rest even according to car frame ? But my book question says that to find the angle at which it gets finally hanged at. | |
| Sep 24, 2023 at 14:48 | comment | added | trula | No, if you have a normal pendulum with equilibrium in the middle, if you push it once it will move all the time it goes to equilibrium only by friction, which you neglected . same with an accelerating car the pendulum goes beyond equilibrium point. when it reaches equilibrium point, you are right, force is zero, but it still has velocity or kinetic energy, like you proved by the way with your calculation. | |
| Sep 24, 2023 at 13:16 | comment | added | An_Elephant | So you're saying that pendulum will never reach equilibrium in this case. Clearly it does , exactly when it reaches angle arctan ( a/g) because net force becomes zero. | |
| Sep 24, 2023 at 12:49 | history | answered | trula | CC BY-SA 4.0 |