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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 x(t) = 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? Section 2.2 Instantaneous Velocity 2.7 - CALC

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 x(t) = 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? Section 2.2 Instantaneous Velocity 2.7 - CALC

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Section 2.2 Instantaneous Velocity 2.7 - CALC 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 x ( t ) = b t 2 − c t 3 , where b = 2.40 m / s 2 and c = 0.120 m / s 3 . (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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