7. Friction, Inclines, Systems
Kinetic Friction
3:34 minutes
Problem 6i
Textbook Question
Textbook QuestionSo-called volcanic 'ash' is actually finely pulverized rock blown high into the atmosphere. A typical ash particle is a 50-micrometer-diameter piece of silica with a density of 2400 kg/m^3. (a) How long would it take this ash particle to fall from a height of 5.0 km in vacuum?
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