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Homework Help: Pressure= c

  1. Nov 17, 2011 #1
    1. The problem statement, all variables and given/known data

    6. A person weighing 900 N is standing on snowshoes. Each snowshoe has an area of 2500 cm2. Find the pressure on the snow.

    a. 0.18 Pa
    b. 0.36 Pa
    c. 1800 Pa
    d. 3600 Pa

    2. Relevant equations


    3. The attempt at a solution

    I tried doing F/(2*(A))
    A=2500cm2/1002cm2 *1m2=.25

    but the answer key says it it .18 instead
  2. jcsd
  3. Nov 17, 2011 #2
    You have done exactly the right thing.
    The area of 1 shoe = 0.25m^2
    so 2 shoes = 0.5m^2 BUT IN YOUR EQUATION you have written 2 + 0.25 !!!! should be 2 x 0.25
    This will give P = 1800Pa. I think the answer 0.18 is wrong !!!!!
  4. Nov 17, 2011 #3
    yeah .18 is wrong for sure
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