The Coefficients of Static and Kinetic Friction Between a 3

question 167

Multiple Choice

The coefficients of static and kinetic friction between a 3.0-kg box and a horizontal desktop are 0.40 and 0.30,respectively.What is the force of friction that the desktop exerts on the box when a 15-N horizontal push is exerted on the box?

• A)12 N
• B)8.8 N
• C)15 N
• D)6.0 N
• E)4.5 N

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