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29 December, 07:30

An object is initially moving at an unknown velocity. It accelerates at a rate of 2.0 m/s2 to a new velocity of 45 m/s in 10s. What was the initial velocity?

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  1. 29 December, 07:54
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    Initial velocity=25m/s

    Explanation:

    acceleration (a) = 2m/s^2

    Final velocity (v) = 45m/s

    Time (t) = 10seconds

    Initial velocity (u) = ?

    V=u+axt

    45=u+2x10

    45=u+20

    u=45-20

    u=25m/s
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