Question: The graph with Problem 23 shows speedometer readings as a car skids to a stop on a straight roadway. What is the magnitude of the

The graph with Problem 23 shows speedometer readings as a car skids to a stop on a straight roadway. What is the magnitude of the acceleration at t = 7.0 s? Sketch a graph of a_x(t). What is the coefficient of kinetic friction?

(m/s) 25 20 15 10 5 O 2 4 6 8 10

(m/s) 25 20 15 10 5 O 2 4 6 8 10 12 14 16 t(s)

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