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31 October, 12:54

Lebron bikes 800/,/text m800m800, start text, m, end text to the left in 25/,/text s25s25, start text, s, end text. What was his average velocity in / dfrac{/text m}{/text s} s m start fraction, start text, m, end text, divided by, start text, s, end text, end fraction? Answer using a coordinate system where rightward is positive. Round the answer to two significant digits.

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  1. 31 October, 13:00
    0
    -32 m/s

    Step-by-step explanation:

    Lebron bikes 800 m to the left in 25 seconds.

    We are using a coordinate system where rightward is positive.

    This means he is moving in the negative axis.

    Hence, his displacement is actually - 800m.

    Velocity is the displacement moved by an object divided by the time spent i. e.

    v = d / t

    His velocity is therefore:

    v = - 800 / 25 = - 32 m/s

    His velocity is - 32 m/s.
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