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Thread: pulley system on block

  1. #1
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    pulley system on block

    pulley  system on block-win_20161119_11_26_49_pro.jpg

    can someone help me out with the first part. the equations i used to try to work this out were mg-t=m(b) and t=m(g/2+b) where b stands for the acceleration of both the particles. however this gets me b=g/4 and this is not the correct answer. the correct answer is 3g/4 . by the way sorry the picture is not clear it says the acceleration of the block is g/2 in the question.
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  2. #2
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    Re: pulley system on block

    Can you do this "relative to the block"- that is treating the block as if it were not moving? Then add in the acceleration of the block.
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  3. #3
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    Re: pulley system on block

    Ok I think that works
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