A gun tackle has a single pulley in both the fixed and moving blocks with 2 rope parts dividing the load of 100N. The mechanical advantage is 2, requiring a force of only 50N to lift the load.

Author: César Rincón

CC BY-SA 3.0

  • OfCourseNot@fedia.io
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    1 day 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.

    • piranhaconda@mander.xyz
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      23 hours ago

      Yea that’s why I said max down force, didn’t want to do the math to find the resultant for a 90 degree to the left pull