Timeline for How can I use Newton's laws of motion to determine the force acting on the rope?
Current License: CC BY-SA 4.0
12 events
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| Sep 26, 2018 at 17:45 | vote | accept | a_sid | ||
| Sep 25, 2018 at 6:44 | comment | added | BioPhysicist | @a_sid Set $a>0$ and get an expression of the form $T>\tau$. Then use this in the equation for $N$. | |
| Sep 25, 2018 at 4:28 | comment | added | a_sid |
I don't understand how you are getting N > (g(m-M))/2.
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| Sep 25, 2018 at 2:41 | history | edited | BioPhysicist | CC BY-SA 4.0 |
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| Sep 24, 2018 at 18:16 | comment | added | BioPhysicist | @a_sid Yes that is right. It is Newton's third law. Just imagine trying to climb a rope. You pull down on the rope, which makes you move upwards. | |
| Sep 24, 2018 at 17:43 | comment | added | a_sid | How is the force of tension acting upwards on the painter? Is it because the rope exerts an upwards pointing force on him since he applied a downwards pointing force (of the same magnitude) on the rope? | |
| Sep 23, 2018 at 23:22 | history | edited | BioPhysicist | CC BY-SA 4.0 |
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| Sep 23, 2018 at 21:47 | history | edited | BioPhysicist | CC BY-SA 4.0 |
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| Sep 23, 2018 at 20:18 | history | edited | BioPhysicist | CC BY-SA 4.0 |
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| Sep 23, 2018 at 20:10 | history | edited | BioPhysicist | CC BY-SA 4.0 |
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| Sep 23, 2018 at 20:04 | history | edited | BioPhysicist | CC BY-SA 4.0 |
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| Sep 23, 2018 at 19:48 | history | answered | BioPhysicist | CC BY-SA 4.0 |