6. Intro to Forces (Dynamics)
Forces in Connected Systems of Objects
Problem 5.80
Textbook Question
Textbook QuestionA coffee cup on the horizontal dashboard of a car slides forward when the driver decelerates from 45 km/h to rest in 3.5 s or less, but not if she decelerates in a longer time. What is the coefficient of static friction between the cup and the dash? Assume the road and the dashboard are level (horizontal).
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