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2. The graph shows the displacement, Ax, of a walking man as a function of time. 12 t (s) (a) What is his speed in

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2. The graph shows the displacement, Ax, of a walking man as a function of time. 12 t (s) (a) What is his speed in the first 2 seconds? (b) What is his speed in the time 2 to 4 seconds? (0) What is his acceleration in the first 2 s? (d) What is his acceleration in the time 2 to 4 s? (e) Is he accelerating in the final 2 seconds

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