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March 29, 2017

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A 2.8 kg rectangular air mattress is 2 meters long,.5 meters wide, and .1 meter thick what mass can't support 50% submerged.

  • physics - ,

    V = 2 * 0.5 * 1 = 1 m^3.

    Vs = 0.5 * 1m^3 = 0.5 m^3 = Vol. surmerged.

    Mass = 0.5m^3 * 100kg/m^3 = 50 kg = mass of water displaced.

    Mass = 50 - 2.8 = 47.2 kg = Mass it can
    support when 50% surmerged.

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