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44.  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 -267 N; the minus sign
indicates that the force points in the -x direction. The coefficient of static friction is
0.65. (a)
If the refrigerator does not move, what are the magnitude and direction of
the static frictional force that the floor exerts on the refrigerator? (b) What is
the magnitude of the largest pushing force that can be
applied to the refrigerator before it just begins to move?
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Since there is no motion
vertically. Solve for N
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Since the fridge is not
moving, Solve for Friction
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This is in the +x direction.
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Largest force is the max
friction force fs, max
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Please send any comments or questions about this page to ddonovan@nmu.edu
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This page last updated on
January 11, 2020
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