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Calculate Weight On Pluto?

Question says it. Assuming weight is 300lbs. I did mass = 300/9.8 = 30.6 then weight on pluto = 30.6/.58 = 52lbs. I think this is wrong though. It should be about 20lbs.

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  • Matt E
    Lv 4
    1 decade ago
    Favorite Answer

    your mixing units. The joys of the non SI units, known as Imperial Units

    weight = 300 lbs = 300 lbf (pounds force) this is what your scale tells you

    the gravitation here is not 9.8 m/s^2, thats SI units. Use 32.2 ft/s^2

    300/32.2 = 9.3 slugs (the non SI plain unit of mass)

    9.3/.58 = 16lbf what your scale says on Pluto

    Now about the .58 you have there...not sure what that is (assuming g on Pluto), and as such, I dont know how accurate my number is.

  • bonnie
    Lv 4
    5 years ago

    2

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  • ?
    Lv 4
    5 years ago

    Weight On Pluto

  • Anonymous
    1 decade ago

    The weight is 89.5 N, or 20.1 lbf (pound-foot).

    Here's why...

    300 pounds is a unit of mass, not weight. Weight is a force, measured in SI units of Newtons.

    So let's put that in terms of kilograms, a proper SI unit. That's:

    m = 136.0777 kg

    Plus, your weight was never given as referenced to Earth (you used 9.8 m/s^2), even if 300 lbs had somehow been "weight." Moving on. Equatorial surface gravity of Pluto is given as 0.658 m/s^2

    So you just use your normal

    W = m * g

    Substituting your proper mass (300 lb in terms of kilograms) and the correct gravity:

    W = (136.0777 kg) * (0.658 m/s^2)

    W = 89.5 N

    This can NOT be turned into "pounds." The closest that you can do is pound-force (lbf), which in this case is 20.1 lbf.

    Source(s): Geologist
  • Anonymous
    6 years ago

    This Site Might Help You.

    RE:

    Calculate Weight On Pluto?

    Question says it. Assuming weight is 300lbs. I did mass = 300/9.8 = 30.6 then weight on pluto = 30.6/.58 = 52lbs. I think this is wrong though. It should be about 20lbs.

    Source(s): calculate weight pluto: https://knowledge.im/?s=calculate+weight+pluto
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