An airplane increases its speed at the average rate of 15 m/s2. How much time does it take to increase its speed from 100 m/s to 160 m/s

Question

An airplane increases its speed at the average rate of 15 m/s2. How much time does it take to increase its speed from 100 m/s to 160 m/s

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Cherry 5 years 2021-07-14T14:54:37+00:00 1 Answers 395 views 0

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  1. thugiang
    0
    2021-07-14T14:56:13+00:00
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    Answer:

    4 s

    Explanation:

    • Acceleration (a) = 15 m/s²
    • Initial velocity (u) = 100 m/s
    • Final velocity (v) = 160 m/s

    We are asked to calculate time taken (t).

    By using the first equation of motion,

    \longrightarrow v = u + at

    \longrightarrow 160 = 100 + 15t

    \longrightarrow 160 – 100 = 15t

    \longrightarrow 60 = 15t

    \longrightarrow 60 ÷ 15 = t

    \longrightarrow 4 s = t

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