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# (I) Suppose you are standing on a train accelerating at ISBN: 9780130606204 3

## Solution for problem 38P Chapter 4

Physics: Principles with Applications | 6th Edition

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Problem 38P

Problem

(I) Suppose you are standing on a train accelerating at 0.20 g. What minimum coefficient of static friction must exist between your feet and the floor if you are not to slide?

Step-by-Step Solution:

Solution 38P: We have to find the minimum value of coefficient of static friction, to prevent the body from sliding as the train accelerates. Step 1 of 3 Concept: Newton’s second law: The net force F acting on an object of mass m produces an acceleration a in that object. Mathematically, F= ma. Frictional force also acts on the surface of the bodies in contact whenever their is relative motion between between the two bodies. Free body diagram of a body gives the diagrammatical representation of all the forces acting on the body in terms of magnitude and diagram, under the given situation. Step 2 of 3 Figure below shows the free body diagram of the person standing on an accelerating train. a Acceleration of the train = 0.20g F NNormal reaction on the person in upward direction mg Weight of the person acting vertically downward direction F frrictional force acting at the contact surfaces Coefficient of static friction

Step 3 of 3

##### ISBN: 9780130606204

This full solution covers the following key subjects: accelerating, coefficient, exist, feet, floor. This expansive textbook survival guide covers 35 chapters, and 3914 solutions. Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. Since the solution to 38P from 4 chapter was answered, more than 826 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 38P from chapter: 4 was answered by , our top Physics solution expert on 03/03/17, 03:53PM. The answer to “(I) Suppose you are standing on a train accelerating at 0.20 g. What minimum coefficient of static friction must exist between your feet and the floor if you are not to slide?” is broken down into a number of easy to follow steps, and 32 words. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6.

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