1. Two people start running from rest. The first person has a mass of 59 kg and is wearing dress shoes with a coefficient of static friction of 0.52. The other person is wearing running shoes with a coefficient of static friction of 0.66.™ (a) Calculate the maximum possible initial acceleration of the person wearing dress shoes. [ans: 5.1 m/s² [forward]] (b) Explain why we do not really need the mass of either person when finding the initial maximum possible acceleration. (c) Determine the ratio of the two accelerations and compare it to the ratio of the two coefficients of friction. [ans: 0.79; they are equal]

1. Two people start running from rest. The first person has a mass of 59 kg and is wearing dress shoes with a coefficient of static friction of 0.52. The other person is wearing running shoes with a coefficient of static friction of 0.66.™ (a) Calculate the maximum possible initial acceleration of the person wearing dress shoes. [ans: 5.1 m/s² [forward]] (b) Explain why we do not really need the mass of either person when finding the initial maximum possible acceleration. (c) Determine the ratio of the two accelerations and compare it to the ratio of the two coefficients of friction. [ans: 0.79; they are equal]

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 15P: Why is the following situation impossible? Your 3.80-kg physics book is placed next to you on the...

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