help pls **Educational Content: Solving a Static Friction Problem****Problem Description:***Consult Multiple-Concept Example 9 to explore a model for solving this problem. A person pushes on a 60-kg refrigerator with a horizontal force of -270 N; the minus sign indicates that the force points in the -x direction. The coefficient of static friction is 0.72.***Questions:**(a) What are the magnitude and direction of the static frictional force that the floor exerts on the refrigerator if it does not move?(b) What is the magnitude of the largest pushing force that can be applied to the refrigerator before it just begins to move?*Assume g = 9.8 m/s².***Inputs Required:**- For part (a), calculate the static frictional force and its direction.- For part (b), determine the magnitude of the largest force.**Answer Submission:**- There are input fields for providing the static frictional force and the largest force.- Each part requires selecting units and possibly additional information from a dropdown menu to aid calculations.**Additional Resources:**- Links to eTextbook and Media for further reference.**Instructions:**- You have 3 attempts to submit your answers.- Use the provided links and resources to understand the theory and calculation methods necessary for solving this problem.**Note:**- Always ensure your calculations consider the correct signs and unit conversions where necessary.- Review theoretical examples that illustrate similar friction problems to enhance understanding.

Answered: Consult Multiple-Concept Example 9 to…

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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**Educational Content: Solving a Static Friction Problem**

**Problem Description:**

*Consult Multiple-Concept Example 9 to explore a model for solving this problem. A person pushes on a 60-kg refrigerator with a horizontal force of -270 N; the minus sign indicates that the force points in the -x direction. The coefficient of static friction is 0.72.*

**Questions:**

(a) What are the magnitude and direction of the static frictional force that the floor exerts on the refrigerator if it does not move?

(b) What is the magnitude of the largest pushing force that can be applied to the refrigerator before it just begins to move?

*Assume g = 9.8 m/s².*

**Inputs Required:**

- For part (a), calculate the static frictional force and its direction.
- For part (b), determine the magnitude of the largest force.

**Answer Submission:**

- There are input fields for providing the static frictional force and the largest force.
- Each part requires selecting units and possibly additional information from a dropdown menu to aid calculations.

**Additional Resources:**

- Links to eTextbook and Media for further reference.

**Instructions:**

- You have 3 attempts to submit your answers.
- Use the provided links and resources to understand the theory and calculation methods necessary for solving this problem.

**Note:**

- Always ensure your calculations consider the correct signs and unit conversions where necessary.
- Review theoretical examples that illustrate similar friction problems to enhance understanding.

Expert Solution

Step 1

Friction force are of two type - static friction and kinetic friction. When there is a relative motion between the two surface friction force came in to existance. When the surface moves with respect to each other then kinetic friction works while if there is a tendency of motion but the bodies does not move relative to each other due to insufficient force to break the boundary between the surfaces then static friction works.

Friction force is a self-adjustable force . So, when applied force is less than static force then friction force adjust itself to that value.

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