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intergrated science

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Keiko is riding a skateboard 2 m/s, west. How long will it take her to reach a velocity of 8 m/s, west if her acceleration is 2 m/s2?

3 seconds
6 seconds
8 seconds
10 seconds

  • intergrated science -

    acceleration of 2m/s^2 means that every second the speed increases by 2m/s.

    So, to change from 2m/s to 8m/s, it increases 6m/s

    That takes 3 seconds

  • intergrated science -

    3 seconds

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