Free body diagram

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  1. ilovemath's Avatar
    1 03-06-2012  18:09
    • Benevolent Member
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    Free body diagram
    Why, in diagram 2, is there no 'weight' force acting on the man?
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  2. marky--mark's Avatar
    2 03-06-2012  18:14
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    • Location: Oxford
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    Re: Free body diagram
    He's in deep space- there's no gravity so even though he has mass there's no weight. (At least, gravity from local objects will be negligable.)

    By the way, I found the position of the weight arrow in diagram 1 amusing.
    :teehee:
    Last edited by marky--mark; 03-06-2012 at 18:16.
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  3. teachercol's Avatar
    3 03-06-2012  18:15
    • Vengeful, Imperial Overlord of The Student Room
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    Re: Free body diagram
    Its in deep space - so no grav fields around.
  4. ilovemath's Avatar
    4 03-06-2012  18:22
    • Benevolent Member
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    Re: Free body diagram
    (Original post by marky--mark)
    He's in deep space- there's no gravity so even though he has mass there's no weight. (At least, gravity from local objects will be negligable.)

    By the way, I found the position of the weight arrow in diagram 1 amusing.
    :teehee:
    thanks both answers
    yes the arrow is amusing
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