Timeline for Counterintuitive tension: weight attached to block on table via a pulley?
Current License: CC BY-SA 4.0
5 events
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| Jan 3, 2021 at 13:00 | comment | added | Dale | @Hank Igoe yes that is correct assuming the masses are very different. If they are nearly equal then the acceleration will not be approximately g | |
| Jan 3, 2021 at 5:17 | comment | added | Hank Igoe | And if I'm right about that, it means that this question reduces to the question, "What is the tension on a rope tied to a block of mass $M$ on a frictionless table if the rope is being pulled such that the block accelerates at $a = 10 m/s^2$ across the table?" Is that all correct? | |
| Jan 3, 2021 at 5:10 | history | edited | Dale | CC BY-SA 4.0 |
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| Jan 3, 2021 at 5:09 | comment | added | Hank Igoe | At first I was thinking that the tension should be higher because the larger hanging mass is "pulling harder," but then I realized that it actually isn't true. The larger hanging mass, like any hanging mass, accelerates at $g \approx 10 {m \over {s^2}}$, at least whenever the mass on the table is neglibible by comparison, as it is in the specific case I gave here. | |
| Jan 3, 2021 at 5:03 | history | answered | Dale | CC BY-SA 4.0 |