AP Physics 1
2.7 Kinetic and Static Friction
2.5 Newton’s Second Law
2.2 Forces and Free-Body Diagrams
1.2 Displacement, Velocity, and Acceleration
Multi-Unit
A coffee cup on the dashboard of a car slides forward when the driver decelerates from \(45\,\text{km/h}\) to rest in \(3.5\,\text{s}\) or less. What is the coefficient of static friction between the cup and the dash? Assume the road and the dashboard are completely horizontal.
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