your initial speed is zero. if you increased your speed by 4 m/s after only 2 seconds and continue to accelerate at the same rate, what will

Question

your initial speed is zero. if you increased your speed by 4 m/s after only 2 seconds and continue to accelerate at the same rate, what will your speed be after 10 seconds?

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Vân Khánh 4 years 2021-07-12T17:52:24+00:00 1 Answers 9 views 0

Answers ( )

  1. ngochoa
    0
    2021-07-12T17:53:29+00:00
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    Answer:

    20 m/ s

    Explanation:

    change in velocity = 4m/ s

    acceleration = \frac{rate \: of \: change \: of \: velocity}{time}

    acc = \frac{4}{2} \\ = 2

    initial velocity = 0m/ s

    • let velocity after 10s be v

    2 = \frac{v - 0}{10}

    cross multiplying

    20 = v

    so the velocity after 10s will be 20m/s

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