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Katie is walking down the road at 2 m/s when a scary dog starts to chase her. She
accelerates at 3 m/s2 for 4 seconds. How fast is she then running?

Respuesta :

  • Initial velocity=u=2m/s
  • Acceleration=a=3m/s^2
  • Time=t=4s
  • Final velocity=v

[tex]\\ \ast\sf\hookrightarrow v=u+at[/tex]

[tex]\\ \ast\sf\hookrightarrow v=2+3(4)[/tex]

[tex]\\ \ast\sf\hookrightarrow v=2+12[/tex]

[tex]\\ \ast\sf\hookrightarrow v=14m/s[/tex]

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