9. Work & Energy
Net Work & Work-Energy Theorem
7:58 minutes
Problem 9j
Textbook Question
Textbook QuestionA 50 kg ice skater is gliding along the ice, heading due north at 4.0 m/s. The ice has a small coefficient of static friction, to prevent the skater from slipping sideways, but μₖ = 0. Suddenly, a wind from the northeast exerts a force of 4.0 N on the skater. (a) Use work and energy to find the skater's speed after gliding 100 m in this wind.
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