Consult Multiple-Concept Example 9 to explore a model for solving this problem.

Question

Consult Multiple-Concept Example 9 to explore a model for solving this problem. A person pushes on a 57-kg refrigerator with a horizontal force of -260 N; the minis sign indicates that the force points in the -x direction. The coefficient of static friction is 0.67. If the refrigerator does not move, what are the magnitude and direction of the static frictional force that the floor exerts on the refrigerator? What is the magnitude of the largest pushing force can be applied to the refrigerator before it just begins to move? Assume g = 9.8 m/s^2. Static frictional force = Magnitude of largest force =

Explanation / Answer

as per your figure, only one answer in your figure is wrong so I am calculating it here,

here refrigerator is not moving, by applying newton second law

fx +fs =0

-260+fs=0

fs =260 N acting along with positive x direction

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