A skateboarder traveling at 7.0 meters per second rolls to a stop at the top of a ramp in 3.0 seconds. What is the skateboarder’s accelerati

Question

A skateboarder traveling at 7.0 meters per second rolls to a stop at the top of a ramp in 3.0 seconds. What is the skateboarder’s acceleration? acceleration=[acceleration]m/s2

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Neala 4 years 2021-07-13T04:51:53+00:00 1 Answers 38 views 0

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  1. Eirian
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    2021-07-13T04:53:23+00:00
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    Answer:

    The skateboarder’s acceleration is -2.33 m/s².

    Explanation:

    The acceleration of an object is a magnitude that indicates how the speed of the object changes in a unit of time. That is, acceleration is the change in speed in a unit of time.

    Acceleration is calculated as the relationship between the variation or change in the speed of a mobile and the time used for said change:

    acceleration=\frac{change in the speed}{time}=\frac{final speed - initial speed}{time}

    In this case:

    • final speed= 0 m/s
    • initial speed= 7 m/s
    • time= 3 s

    Replacing:

    acceleration=\frac{0 m/s - 7 m/s}{3 s}

    and solving you get:

    acceleration= -2.33 m/s²

    The skateboarder’s acceleration is -2.33 m/s².

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