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wh 75-kg human total footprint is 0.05 m2 the hum is wearing boots. Suppose you want to walk on snow that can at most support an extra 3 kPa; what should the total snowshoe area be? 1.5

Respuesta :

Answer:

A total = 0.04 m²

Explanation:

given data

mass = 75 kg

area = 0.05 m²

pressure = 3 kPa

solution

pressure when human walking on ground

p = [tex]\frac{mg}{A}[/tex]  .................1

p = [tex]\frac{75\times 9.81}{0.05}[/tex]

p = 14.715 kPa

and

when walk on snow got extra pressure

P total = p + p (extra)   ................2

P total = 14.715 + 3 = 17.715 kPa

and

total pressure is also

p total = [tex]\frac{mg}{A}[/tex]

A total = [tex]\frac{75\times 9.81}{17.715}[/tex]  

A total = 0.04 m²

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