A car is traveling along the circular curve of radius r = 300 ft. At the instant shown, its angular rate of rotation is = 0.4 rad / s, which is increasing at the rate of = 0.2 rad / s2. Determine the magnitude of the acceleration of the car at this instant.
= 0.4 rad / s, which is increasing at the rate of 
= 0.2 rad / s2. Determine the magnitude of the acceleration of the car at this instant.
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