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A car starts moving rectillinearily, first with acceleration a=5m/s^2 (the initial velocity is zero), then uniformly, and finally, decelerating at the same rate a , comes to a stop. The total time of the motion is 25s. The average velocity during that time is equal to = 72km/hr. How long does the car move uniformly??


A car starts moving rectillinearily, first with acceleration a=5m/s^2 (the initial velocity is zero), then uniformly, and finally, decelerating at the same rate a , comes to a stop. The total time of the motion is 25s. The average velocity during that time is equal to = 72km/hr. How long does the car move uniformly??


Grade:9

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