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Question 5 (1d motion, constant a) A some moment in time, a car accelerates at a constant rate along a straight line from 10 m/s ending at 25 m/s after traveling a distance of 90 meters. Upon reaching 25 m/s, the clock inside the car reads 3 seconds. a. What is the acceleration of the car? b. At what time, according to the clock on the car, did the car start to accelerate?

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Answer #1

acceleration-of-car- from kinematic eguation, S 2 time at tohi ch Car at 2.5= lo + 2.32 (3- 1)

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