A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 24 m/s west, and the total acceleration of the car is 2.5 m/s² 53° north of west. Which of the following is correct? A) R = 0.29 km, and the car's speed is increasing. B) R = 0.23 km, and the car's speed is decreasing. C) R = 0.23 km, and the car's speed is increasing. D) R = 0.29 km, and the car's speed is decreasing. E) R = 0.29 km, and the car's speed is constant.

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The Answer of A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 24 m/s west, and the total acceleration of the car is 2.5 m/s² 53° north of west. Which of the following is correct? A) R = 0.29 km, and the car's speed is increasing. B) R = 0.23 km, and the car's speed is decreasing. C) R = 0.23 km, and the car's speed is increasing. D) R = 0.29 km, and the car's speed is decreasing. E) R = 0.29 km, and the car's speed is constant.

A Car Travels in a Flat Circle of Radius R