Question: A car that started out moving at 1 5 m / s accelerates uniformly at 2 m / s 2 until its speed is 3

A car that started out moving at 15 m/s accelerates uniformly at 2 m/s2 until its speed is 35 m/s. Then it moves at a constant 35 m/s for 4 more seconds. Which speed vs. time graph (v-t curve) represents the motion of this car?

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