To clear a jump a skateboarder has to increase his velocity from 4 m/s to 12 meters/second. He has only 4 seconds to do it. What must his ac

Question

To clear a jump a skateboarder has to increase his velocity from 4 m/s to 12 meters/second. He has only 4 seconds to do it. What must his acceleration be to make this jump?

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Dâu 4 years 2021-09-04T07:04:07+00:00 1 Answers 5 views 0

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  1. vankhanh
    0
    2021-09-04T07:05:39+00:00
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    2 m/s² is the acceleration.

    Explanation:

    Acceleration is defined as the rate of change in velocity with respect to time.

    Here the initial velocity, u = 4 m/s

       the final velocity , v = 12 m/s

    time = 4 seconds

    Acceleration = \frac{v-u}{t}

    Plug in the values, we will get,

    Acceleration = \frac{12-4}{4}

                      = \frac{8}{4} = 2 m/s²

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