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7 January, 19:22

A car traveling at 3.6 m/s accelerates at the rate of 0.71 m/s2 for an interval of 4.4 s. Find vf. Incorrect: Your answer is incorrect. m/s

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  1. 7 January, 19:35
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    vf = 6.724 m/s

    Explanation:

    Velocity: This an be defined as the rate of change of displacement. Velocity is a vector quantity, because it can be represented both in magnitude and direction. The S. I unit of velocity is m/s.

    From newton's equation of motion,

    vf = vi + at ... Equation 1

    Where vf = final velocity, vi = initial velocity, a = acceleration, t = time.

    Given: vi = 3.6 m/s, a = 0.71 m/s², t = 4.4 s.

    Substitute into equation 1

    vf = 3.6+0.71 (4.4)

    vf = 3.6+3.124

    vf = 6.724 m/s

    Hence, vf = 6.724 m/s
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