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physics

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A car accelerates uniformly from rest to a speed of 64.5 km/h (17.9 m/s) in 10 s. Find the distance the car travels during this time.

  • physics -

    easy way:
    average speed = 17.9/2
    distance = 179/2 meters

  • physics -

    Hard way:
    v = Vi + a t
    17.9 = 0 + a(10)
    a = 1.79
    x = Xi + Vi t + (1/2) a t^2
    x-Xi = distance = 0 (10 + (1/2)(1.79) (100)
    =179/2

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