REDINSANITY5119 REDINSANITY5119

04-09-2020
Physics

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(6) A 75 kg human total footprint area is 0.05 m2 when wearing winter boots. Suppose that you want to walk on snow that can at most support an extra 3 kPa (kPa = kN/m2), what should the total snow shoe area be?

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hopemichael95 hopemichael95

04-09-2020

Answer:

0.25m²

Explanation:

We know that the summation of forces in the vertical direction is zero

So

PA-mg=0

A=mg/p

So

Substituting

A= 75* 9.8/3*10^-3

=0.25m² which is the total shoe area

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