Timeline for How does a simple pendulum gain its acceleration?
Current License: CC BY-SA 4.0
4 events
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| Jul 9, 2021 at 14:48 | comment | added | Peter | The statement about parallelogram of forces is correct. However T changes as soon as F is removed. If you want to see the horizontal movement then use a spring instead of the pendulum string or rod, so that you can see what happens as the tension changes. In this case your statement would be completely correct. The apparatus won't be a simple pendulum any more though. | |
| Jul 9, 2021 at 13:25 | comment | added | ACB | Then, is this statement false?:"According to the theorem of the parallelogram of forces, the resultant of T and mg acts horizontally along the opposite direction of F. Just after F is removed, the net force on the bob should act along the horizontal axis. According to $\vec F=m \vec a$, the initial acceleration should be along the horizontal axis." | |
| Jul 9, 2021 at 11:21 | history | edited | Peter | CC BY-SA 4.0 |
added 247 characters in body
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| Jul 9, 2021 at 11:15 | history | answered | Peter | CC BY-SA 4.0 |