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anonymous
 one year ago
Open Solution Problem;Soft snow can be compressed by pressure about 3.0 ×10^3 Pa. What is the smallest area that a pair of snowshoes must have if they will enable a 80 kg person to walk over the snow without sinking in? Consider g = 9.8 m/s2.
anonymous
 one year ago
Open Solution Problem;Soft snow can be compressed by pressure about 3.0 ×10^3 Pa. What is the smallest area that a pair of snowshoes must have if they will enable a 80 kg person to walk over the snow without sinking in? Consider g = 9.8 m/s2.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The first person who gets it earns a medal and fan

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0First you have to consider the ?Newtonian force acting on the ground. This is caculated using Mg

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0And use the equation Pressure=F/A(surface area in m^2) with inequality equation

DDCamp
 one year ago
Best ResponseYou've already chosen the best response.1First find the force the person will exert on the snow, using Newton's 2nd law: \[F = ma \\ F = 88kg * 9.8 \frac{m}{s^2}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Correct! Newton's second law or simply mass*gravityt

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0In fact you are calculating the normal force using that equation above

DDCamp
 one year ago
Best ResponseYou've already chosen the best response.1Use the equation for pressure:\[P = F/A \\ 3000 Pa = 862.4 N / A \\ A = 862.4N / 3000 Pa \\ A = 0.287 m^2\]
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