A car is stopped at a traffic light. it then travels along a straight road such that its distance from the light is given by x1t2 = bt2 - ct3, where b = 2.40 m>s2 and c = 0.120 m>s3. (a) calculate the average velocity of the car for the time interval t = 0 to t = 10.0 s. (b) calculate the instantaneous velocity of the car at t = 0, t = 5.0 s, and t = 10.0 s. (c) how long after starting from rest is the car again at rest?
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