A 4.00-kg wedge A is placed on a rough inclined surface and is observed to slide down. The coefficients of sliding and impending-slide friction between the wedge and the incline are 0.150 and 0.200, respectively. Which of the following is closest to the magnitude of the friction force between wedge A and the incline?  a. 6.01 N b. 20.7 N c. 4.51 N d. 25.2 N

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