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13 May, 19:43

A gazelle can change its speed from 0 to 45 mph in 2 seconds. What is the gazelle's acceleration?

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Answers (2)
  1. 13 May, 20:30
    0
    22.5 m/s^2

    Step-by-step explanation:

    Givens

    vi=0

    vf = 45 mph

    t = 2 seconds

    a = ?

    Formula

    a = (vf - vi) / t

    a = (45 - 0) / 2

    a = 22.5 m/s^2 That's an incredible change of speed.
  2. 13 May, 22:18
    0
    average acceleration a=change in velocity / time it took to get to velocity

    a = (45-0) mph / 2s = 22.5 mph/hr/s
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