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    Hi, so for this question, I am confused about the solutions posted to physicsandmathstutor for part b of this question. Such as, where did the 3 come from? I have a feeling it's super obvious but I'm still confused. Any help appreciated
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    (Original post by SlashaRussia)
    Hi, so for this question, I am confused about the solutions posted to physicsandmathstutor for part b of this question. Such as, where did the 3 come from? I have a feeling it's super obvious but I'm still confused. Any help appreciated
    The mechanical advantage of that pulley system is 3... i.e. F=mg/3 but the motor has to wind the rope at 3u
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    (Original post by Joinedup)
    The mechanical advantage of that pulley system is 3... i.e. F=mg/3 but the motor has to wind the rope at 3u
    Thank you! I definitely need to look mechanical advantage up and get familiar with it!
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    Yeah I did that paper lol (even though I'm not doing the pat). I got like 63/100 so okay although would have been 70+ with no silly mistakes.
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    Maths wise, I couldn't get far in the circle one.
 
 
 
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