Timeline for Pulley system on a frictionless cart
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 15, 2015 at 3:01 | review | First posts | |||
| Oct 15, 2015 at 3:42 | |||||
| Oct 3, 2015 at 20:46 | comment | added | timothy brachna | well. if you think about it the scenario above it fully it would be that they would all be in constant movement, touching with no effect from anything they would just keep moving. Whether it would flip or not could not be thought of. adding a little friction would change the scenario all together. | |
| Oct 3, 2015 at 20:31 | comment | added | dmckee --- ex-moderator kitten | Assume the cart has a uniform mass distribution and that the drawing is roughly to scale. Then even if the top mass is very light the cart could mass as little as 1/3 the hanging mass and still not flip. You could rig a scenario where it flips, but assuming that it will is a bit of a stretch. | |
| Oct 3, 2015 at 20:03 | comment | added | timothy brachna | If you add friction to the scenario, as the larger weight falls the smaller weight would hit the pulley system sending the cart to rise on the other end and fall which would make it roll in the opposite direction of the weights. | |
| Oct 3, 2015 at 19:27 | comment | added | 1110101001 | To clarify, without static friction acting on the tires, the torque generated by gravity acting on the weight+pulley would cause it to flip, right? However, how would the addition of friction between the tires and ground change this scenario? There would need to be a torque in the opposite direction to counter it, but what generates this torque? | |
| Oct 3, 2015 at 15:13 | history | answered | timothy brachna | CC BY-SA 3.0 |