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Wind skating
An ice-skater is standing still on the surface of a frozen lake. Suddenly, a strong wind of 40 km/h starts blowing. Would the skater move? If so, determine the steady-state velocity of motion of the skater.
Consider the following information:
skater’s mass: 75 kg
skater’s frontal area: 0.60 m2
skater’s drag coefficient: 0.80
air density: 1.25 kg/m3
static friction coefficient between skates and ice: 0.03
kinetic friction coefficient between skates and ice: 0.015
Contributed by Stavros Tavoularis, Department of Mechanical Engineering, University of Ottawa, Ottawa, Canada. |
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