A car sitting at a red light begins to accelerate at 2 m/s2 when the light...

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A car sitting at a red light begins to accelerate at 2 m/s2 when the light...

A car sitting at a red light begins to accelerate at 2 m/s2 when the light turns green. It continues with this acceleration until it reaches a speed of 20 m/s. It then travels at this speed for another few minutes. How far does the car travel in the first 45 s after the light changes to green?

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Answer 1

Answer #1

time to accelerate t 20/2 10 s distance traveled during acceleration = 1/2ať = (0.5)(2)(10): 100 m time of travel at 20 m/s 4

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Answer 2

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