Timeline for Describing forces in rolling
Current License: CC BY-SA 4.0
18 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 29, 2020 at 7:33 | comment | added | Bhavay | @Gert sir it means to choose as many correct options as possible. | |
| Jun 29, 2020 at 7:30 | comment | added | Gert | @BhavayWhat do you mean by 'multi-correct'? | |
| Jun 29, 2020 at 7:22 | comment | added | Bhavay | it's a multi-correct question. I'm just in high school so please go easy on me. | |
| Jun 29, 2020 at 7:21 | comment | added | Bhavay | Sorry, i just thought it will be easier. Anyhow chat.stackexchange.com/transcript/message/54605272#54605272 | |
| Jun 29, 2020 at 7:19 | comment | added | Gert | @Bhavay Why, what business of yours is it? A moderator will intervene if needed. You're not one of them. | |
| Jun 29, 2020 at 7:16 | comment | added | Bhavay | Can u move this conversation to a chat? | |
| Jun 29, 2020 at 7:15 | comment | added | Gert | Yes. Also show me rolling without friction, please. | |
| Jun 29, 2020 at 7:12 | comment | added | Bhavay | @Gert rolling can exist without friction.May i show u one of the question which i was asked in my exam ? | |
| Jun 18, 2020 at 2:08 | comment | added | Rusan Lamsal | In the above situation, if the surface is frictionless, our force also creates some torque. So can't it help with rolling on a frictionless surface? | |
| Jun 17, 2020 at 4:28 | comment | added | Gert | It's good question and easily answered. A friction force ALWAYS opposes potential or actual movement, including relative movement. So work out which direction movement would happen in the absence of friction and that the opposite direction is the direction the friction force vector will point. | |
| Jun 17, 2020 at 2:23 | comment | added | Rusan Lamsal | I have a question! How do we set the direction of friction? | |
| Jun 16, 2020 at 13:24 | comment | added | Gert | On a frictionless surface the wheel will always slide. For that case, simply set $\mu =0$ in the above equations. | |
| Jun 16, 2020 at 13:18 | comment | added | Gert | You CANNOT have rolling without friction. Rolling requires torque to keep the rotational motion going, as also the other answers correctly showed. That torque is supplied by the FRICTION FORCE $F_f=\mu mg$. | |
| Jun 16, 2020 at 1:38 | comment | added | Rusan Lamsal | I asked for frictionless surface, please. | |
| Jun 15, 2020 at 7:00 | history | edited | Gert | CC BY-SA 4.0 |
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| Jun 15, 2020 at 6:54 | history | edited | Gert | CC BY-SA 4.0 |
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| Jun 15, 2020 at 6:40 | history | edited | Gert | CC BY-SA 4.0 |
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| Jun 15, 2020 at 6:34 | history | answered | Gert | CC BY-SA 4.0 |