A truck starts from rest with an acceleration of 0.3 m/ S^2 find its speed in km/h when it has moves through 150 m​

Question

A truck starts from rest with an acceleration of 0.3 m/ S^2 find its speed in km/h when it has moves through 150 m​

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Diễm Kiều 2 months 2021-07-28T22:15:21+00:00 1 Answers 3 views 0

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    2021-07-28T22:17:20+00:00

    Answer:

    v = 34.128 km/hr

    Explanation:

    Given that,

    The initial speed of a truck, u = 0

    Acceleration of the truck, a = 0.3 m/s²

    Distance moved, d = 150 m

    Let the final speed of the truck is v. Using third equation of motion i.e.

    v^2-u^2=2ad\\\\v=\sqrt{u^2+2ad}

    Put all the values,

    v=\sqrt{0^2+2\times 0.3\times 150}\\\\v=9.48\ m/s

    or

    v = 34.128 km/h

    So, the final speed of the truck is equal to 34.128 km/h.

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