A car is stopped at a red light. When the light turns green, the carbegins to accelerate

Chapter 1, Problem Challenges 3

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A car is stopped at a red light. When the light turns green, the carbegins to accelerate with a constant acceleration of 4.0 m/s2. Just asthe car starts moving, it is passed by a small truck traveling uni-formly with a speed of 12 m/s.(a) If each vehicle continues to move as described, find the distancetraveled by each after 1 s, 3 s, 5 s, and 7 s. Assume t 0 just asthe truck passes the car.(b) Plot the data for each vehicle on the same distance-versus-timegraph and determine the approximate time at which the carovertakes the truck. Can you see a way to solve this problemalgebraically to find the precise time using only the kinematicequations?

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