How much time elapses from start to stop

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Q. An electric vehicle starts from rest and accelerates at a rate of 1.6 m/s2 in a straight line until it reaches a speed of 20 m/s. The vehicle after that slows at a constant rate of 1.4 m/s2 until it stops. (1) How much time elapses from start to stop? (2) How far does the vehicle move from start to stop?

Reference no: EM1345069

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