OfCourseNot
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- Comment on Diagram of a pulley system, demonstrating how pulleys facilitate the lifting of heavy weights (2004) 2 days ago:
I don't think it can get as low as 100N, for that you would have to pull completely upwards. The shadow in the image implies a ceiling, so ~112N if we take 90° as the max angle. The 150N would be the only case with a completely downward force, if you pull at another angle the resulting force vector will be angled as well.
- Comment on Diagram of a pulley system, demonstrating how pulleys facilitate the lifting of heavy weights (2004) 2 days ago:
Nope. Right now the system is balanced, the rope is not being pulled just hold. To pull the weight up you need more than 50N, plus a bit more if we take into consideration the friction in the pulleys and in the rope itself.