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19 August, 00:44

A car accelerates from rest at 3.6m/s^2. how much time does it need to attain a speed of 7 m/s? awnser in units of s.

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  1. 19 August, 00:51
    0
    General formula is acceleration = velocity / time

    acceleration / velocity = time

    3.6 / 7 = time

    0.514 seconds = time
  2. 19 August, 00:53
    0
    Initial velocity: 0

    final velocity: 7 m/s

    a = 3.6

    t = ?

    x = ?

    (7-0) / 3.6 = t

    t = 1.94 s
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