if abus travelling at 20m/s is subject to steady decceleration of 5m/s².how long will it take yo come to rest.​

Question

if abus travelling at 20m/s is subject to steady decceleration of 5m/s².how long will it take yo come to rest.​

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Khang Minh 5 years 2021-08-03T18:21:51+00:00 1 Answers 12 views 0

Answers ( )

  1. Nho
    0
    2021-08-03T18:23:12+00:00
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    Answer:

    4 seconds

    Explanation:

    Given:

    v₀ = 20 m/s

    v = 0 m/s

    a = -5 m/s²

    Find: t

    v = at + v₀

    0 m/s = (-5 m/s²) t + 20 m/s

    t = 4 s

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