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A car and a truck starts from same point along same direction ,car with initial speed 2m/s and acceleration 2 m/s^2 and truck with a constant speed 20 m/s ,find the time after which car will overtake the truck

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2 answers
  1. d1 = 2t^2 + 2t
    d2 = 20t
    the time of overtaking is when d1 = d2

    2t^2 + 2t = 20t
    t^2 - 9t = 0
    t(t - 9) = 0

    interpret this equation, and find the answer to your question from it.

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    Reiny
  2. d = vt + 1/2 at^2

    so d1 = 2t + 1t^2

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    oobleck

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