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23 November, 02:34

A train is accelerating at a rate of 2 m/s. If its initial velocity is 20 m/s, what is its

velocity after 30 seconds?

Given:

Equation:

Plug in:

Answer:

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Answers (1)
  1. 23 November, 03:38
    0
    80 m/s

    Explanation:

    Given:

    a = 2 m/s²

    v₀ = 20 m/s

    t = 30 s

    Find: v

    Equation:

    v = at + v₀

    Plug in:

    v = (2 m/s²) (30 s) + 20 m/s

    v = 80 m/s

    After 30 seconds, the train's velocity is 80 m/s.
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