cordarorere1234 cordarorere1234
  • 01-03-2018
  • Mathematics
contestada

At the start of a race, a runner’s velocity changes from 0 to 4.0 m/s. It takes him 2 seconds to speed up. His acceleration is ______ m/s2.

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MarkV
MarkV MarkV
  • 01-03-2018
To find the acceleration we divide the change of velocity by the change of time.
Change of velocity: 4 m/s
Change of time: 2 s

Acceleration = [tex] \frac{4}{2} = 2[/tex]

So the answer: his acceleration is 2 m/s^2
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delaneysheets4833
delaneysheets4833 delaneysheets4833
  • 23-09-2020

His acceleration is, 2 m/s^2!

Hope this helps! :)

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