Timeline for What are the Normal forces at instantaneous point of collision?
Current License: CC BY-SA 4.0
5 events
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| Nov 13, 2020 at 4:02 | comment | added | Gilbert | @AnotherStudent Well you could use the speed of sound of the material and the size of the objects to get a back-of-the-envelope $\Delta$t. But to do better than that, you’ll need to seriously up your game with detailed time-dependent structural mechanics simulations. | |
| Nov 13, 2020 at 0:26 | comment | added | AnotherStudent | Yup, pretty much. Not a book but rather a system of particle, but same stuff. What I'm having trouble with is the moment of collision - not the falling, nor the "resting"; which is why I'm having trouble figuring out, for example, what value I should use for t in the impulse... | |
| Nov 13, 2020 at 0:20 | comment | added | user256872 | If the book and table are already at rest, why consider collisions? Are you trying to simulate dropping a book on the table? | |
| Nov 13, 2020 at 0:09 | comment | added | AnotherStudent | Thank you for your answer. I did try to model this using the impulse-momentum equation you mentioned, but I must have made a conceptual mistake as my calculations didn't work out. Take the example of my post, book & table: How would I begin to choose the time of collision, since the book stays on the table and the table doesn't budge? Is it near-0, making F immense, or is it near-infinite, making F 0? Both cases don't seem realistic nor make my calculations work out, unfortunately... | |
| Nov 12, 2020 at 23:58 | history | answered | user256872 | CC BY-SA 4.0 |