Friction: 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 on the box when a 15-N horizontal push is applied to the box?
A. 12 N
B. 8.8 N
C. 15 N
D. 6.0 N
E. 4.5 N
Answer: B
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A.
B.
C.
D.
E.
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