A car accelerates from rest at constant rate of 2 m/s2 for some time. Then its retards at a constant rate of 4 m/s2 and comes to rest. What is the maximum speed attained by the car if it remains in motion for 3 seconds

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A car accelerates from rest at constant rate of 2 m/s<sup>2</sup> for some time. Then its retards at a constant rate of 4 m/s<sup>2</sup> and comes to rest. What is the maximum speed attained by the car if it remains in motion for 3 seconds






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