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Suppose two children push horizontally, but in exactly

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs ISBN: 9781938168000 42

Solution for problem 9PE Chapter 4

College Physics | 1st Edition

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College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

College Physics | 1st Edition

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Problem 9PE

Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N, the second a force of 90.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 23.0 kg. (a) What is the system of interest if the acceleration of the child in the wagon is to be calculated? (b) Draw a free-body diagram, including all forces acting on the system. (c) Calculate the acceleration. (d) What would the acceleration be if friction were 15.0 N?

Step-by-Step Solution:

Solution to 9PE

Step 1 of 4</p>

 In this question, we need to state a system of interest for calculating the acceleration of a child on a wagon if there are two opposite forces acting on it.

Step 2 of 4</p>

Given data:

 is the first force which is equal to 75N

 is the second force which is equal to 90N

 is the mass of the third child and the wagon which is equal to 23kg

 is the frictional force which is equal to 12N

(a)

The system of chonce will be a body on wheels which is acted upon by two unequal and opposite forces.

The frame of reference of choice will be a non-accelerating frame of reference.

(b)Free body diagram,

Step 3 of 4

Chapter 4, Problem 9PE is Solved
Step 4 of 4

Textbook: College Physics
Edition: 1
Author: Paul Peter Urone, Roger Hinrichs
ISBN: 9781938168000

This full solution covers the following key subjects: Child, wagon, acceleration, system, Force. This expansive textbook survival guide covers 34 chapters, and 3125 solutions. The full step-by-step solution to problem: 9PE from chapter: 4 was answered by , our top Physics solution expert on 07/07/17, 04:39PM. College Physics was written by and is associated to the ISBN: 9781938168000. The answer to “Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N, the second a force of 90.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 23.0 kg. (a) What is the system of interest if the acceleration of the child in the wagon is to be calculated? (b) Draw a free-body diagram, including all forces acting on the system. (c) Calculate the acceleration. (d) What would the acceleration be if friction were 15.0 N?” is broken down into a number of easy to follow steps, and 96 words. This textbook survival guide was created for the textbook: College Physics , edition: 1. Since the solution to 9PE from 4 chapter was answered, more than 473 students have viewed the full step-by-step answer.

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