**Physics of Braking:**A car is moving along the ground at 20 m/s with a mass of 1200 kg. The coefficients of friction are given as follows: static friction (\(\mu_s\)) = 0.8 and kinetic friction (\(\mu_k\)) = 0.7.**Questions:**a. **What maximum acceleration can the car brake with?**b. **In this case, what is its stopping distance?**c. **Why is the car’s stopping distance longer if the wheels lock and the car skids to a stop?**

Given Data: Car velocity, v=20 m/s Car mass, m=1200 kg Friction coefficients are μs=0.8 and μk=0.7

A car is moving along the ground at 20m/s with a mass of 1200kg. If µg=0.8 and H,=0.7: a. What maximum acceleration can the car brake with? b. In this case, what is its stopping distance? c. Why is the car's stopping distance longer if the wheels lock and the car skids to a stop?

A car is moving along the ground at 20m/s with a mass of 1200kg. If µg=0.8 and H,=0.7: a. What maximum acceleration can the car brake with? b. In this case, what is its stopping distance? c. Why is the car's stopping distance longer if the wheels lock and the car skids to a stop?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

**Physics of Braking:**

A car is moving along the ground at 20 m/s with a mass of 1200 kg. The coefficients of friction are given as follows: static friction (\(\mu_s\)) = 0.8 and kinetic friction (\(\mu_k\)) = 0.7.

**Questions:**

a. **What maximum acceleration can the car brake with?**

b. **In this case, what is its stopping distance?**

c. **Why is the car’s stopping distance longer if the wheels lock and the car skids to a stop?**

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