Acar is traveling along the circular curve of radius r = 300 ft. At the instant shown, its angular rate of rotation is θ̇  = 0.4 rad/s, which is increasing at the rate of θ̈  = 0.2 rad/s². Determine the magnitudes of the car’s velocity and acceleration at this instant.

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8 = 0.4 rad/s 6 = 0.2 rad/s² r = 300 ft A