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28 December, 06:21

An electron, starting from rest and moving with a constant acceleration, travels 2.0 cm in 5.0 ms. What is the magnitude of this acceleration?

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  1. 28 December, 07:15
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    s=2.7 centimeters = 0.027 meters

    t=3.9 milliseconds = 0.0039 seconds

    s = (1/2) a*t^2

    so

    a = (2.7*2) / (0.0039) ^2

    = 355,029.58 m/s^2

    a=355,029.58 m/s^2 = 355.02958 km / s^2
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