Which of the following best describes the reason that a car can stop more quickly on dry pavement than on icy pavement? Your answer: o The coefficient of firiction between rubber and ice is lower than the coefficient of friction for rubber and the pavement material. The mass of the road is higher than the mass of the ice, and that means there is a greater normal force supporting the car when it is on the pavement. o The mass of the road is higher than the mass of the ice, and the greater mass means the gravitational force between the road and car is greater. o The tires of the car can spread out more on the pavement, and the increased surface area makes it harder for the tire to slide.

Which of the following best describes the reason that a car can stop more quickly on dry pavement than on icy pavement? Your answer: o The coefficient of firiction between rubber and ice is lower than the coefficient of friction for rubber and the pavement material. The mass of the road is higher than the mass of the ice, and that means there is a greater normal force supporting the car when it is on the pavement. o The mass of the road is higher than the mass of the ice, and the greater mass means the gravitational force between the road and car is greater. o The tires of the car can spread out more on the pavement, and the increased surface area makes it harder for the tire to slide.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter6: Applications Of Newton’s Laws Of Motion

Section6.3: A Model For Static Friction

Problem 6.3CE

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