A runner starts from rest and achieves a maximum speed of 8.85 m/s. If her acceleration is 9.67 m/s2, how long does it take her to rea

Question

A runner starts from rest and achieves a maximum speed of 8.85 m/s.
If her acceleration is 9.67 m/s2, how long does it take her to reach that speed?

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Dâu 5 years 2021-07-23T23:01:25+00:00 1 Answers 35 views 0

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  1. Giakhanh
    0
    2021-07-23T23:03:14+00:00
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    Answer:

    The appropriate answer is “0.9152 seconds“.

    Explanation:

    The given values are:

    Maximum speed,

    v = 8.85 m/s

    Acceleration,

    u = 9.67 m/s²

    Now,

    ⇒ v = u+at

    By putting the values, we get

    ⇒ 8.85=0+9.67t

    ⇒      t=\frac{8.85}{9.67}

    ⇒         =0.9152 \ second    

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