A race car moving with a constant speed of 60 m/s completes one lap around a circular track in 50 s. What is the magnitude of the acceleration of the race car?

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  1. v^2/R

    where v = 2 pi R /50 = 60
    R = 3000/(2 pi) = 1500/pi

    Ac = 60^2 (pi/1500)

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