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Use the worked example above to help you solve this problem. A race car accelerates uniformly from a speed of 36.5 m/'s to a speed of 60.5 m/'s in 5.00 s while traveling clockwise around a circular track of radius 3.80 x 10 m. When the car reaches a speed of 50.0 m/s, find the following. (a) the magnitude of the centripetal acceleration m/s2 (b) the angular speed rad/s (c) the magnitude of the tangential acceleration m/s 2 (d) the magnitude of the total acceleration m/s2 EXERCISE HINTS: GETTING STARTED | I'M STUCK! Use the values from PRACTICE IT to help you work this exercise. Suppose the race car now slows down uniformly from 60.5 m/s to 24.0 m/s in 3.60 s to avoid an accident, while still traveling a circular path 3.80 x 102 m in radius. (a) Find the magnitude of the centripetal acceleration when the speed is 40.0 m/s. m/s2 (b) Find the angular speed when the speed is 40.0 m/s. rad/s (c) Find the magnitude of the tangential acceleration when the speed is 40.0 m/s. m/s2 (d) Find the magnitude of the total acceleration when the speed is 40.0 m/s. m/s2