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27 June, 01:03

A drag racer completes a race in 14.3 s. If the drag racer has an average speed of 251 km/h, how long is the racetrack?

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  1. 27 June, 03:50
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    Centripetal Acceleration = v^2/r

    = (circumference/time) ^2/r

    = (2*pi*r/t) ²) / r

    = ((2³.14*50/14.3) ²) / 50

    = 9.64 m/s ²
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