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physics

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an object is initially moving 15.0 m/s. a minute later, it is moving 25.0 m/s in the opposite direction. What is the displacement and acceleration?

  • physics -

    change in velocity = final - initial = -25 - 15 = -40
    A = change in velocity/time = -40/60 m/s^2
    = -2/3 m/s^2

    average velocity = (15-25) /2 = - 10/2 = -5 m/s
    displacement = average velocity*time = -5*60 = -300 meters

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