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The speed limit on a particular freeway is 28.0 m/s (about 101 km/hour). A car that is merging onto the freeway is capable of accelerating at 5.50 m/s2. If the car is currently traveling forward at 13.0 m/s, what is the shortest amount of time it could take the vehicle to reach the speed limit?

  • Physics -

    t = (Vf - Vo) / a,
    t = (28 - 13) / 5.5 = 2.73s.

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