Hola, me pueden ayudar con física. 2. ¿ al cabo de cuanto tiempo adquiere un móvil una velocidad de 30 m / s, si parte del reposo y su

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Hola, me pueden ayudar con física.
2. ¿ al cabo de cuanto tiempo adquiere un móvil una velocidad de 30 m / s, si parte del reposo y su aceleracion es de 3 m / s * 2? ​

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Phúc Điền 5 years 2021-08-29T23:52:08+00:00 1 Answers 14 views 0

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  1. Calantha
    0
    2021-08-29T23:53:35+00:00
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    Explanation:

    The question says that, “After how long does a mobile acquire a speed of 30 m / s, if it starts from rest and its acceleration is 3 m / s*2”

    Initial speed is 0

    Final speed is 30 m/s

    Acceleration a = 3 m/s²

    It is required to find time when it acquire a speed of 30 m/s. Using equation of kinematics as :

    v=u+at\\\\t=\dfrac{v-u}{a}\\\\t=\dfrac{30}{3}\\\\t=10\ s

    So, after 10 seconds it will acquire a speed of 30 m/s.

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