A body starts from rest and accelerates uniformly at 5m/s. Calculate the time taken by the body to cover a distance of 1km

Question

A body starts from rest and accelerates uniformly at 5m/s. Calculate the time taken by the body to cover a distance of 1km

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Kiệt Gia 3 years 2021-07-14T02:00:39+00:00 1 Answers 55 views 0

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  1. giabao
    0
    2021-07-14T02:02:11+00:00
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    Answer:

    20 seconds

    Explanation:

    We are given 2 givens in the first statement

    v0=0 and a=5

    And we are trying to find time needed to cover 1km or 1000m.

    So we use

    x-x0=v0t+1/2at²

    Plug in givens

    1000=0+2.5t²

    solve for t

    t²=400

    t=20s

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