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An airplane accelerates down a 1000-m stretch of runway at +5m/s^2. How fast is it moving at the end of this stretch of runway?

Respuesta :

  • Initial velocity=0m/s
  • Acceleration=a=5m/s^2
  • Distance=s=1000m

  • Final velocity is v

Apply thrid equation of kinematics

[tex]\\ \tt\longmapsto v^2=u^2+2as[/tex]

[tex]\\ \tt\longmapsto v^2=2(5)(1000)[/tex]

[tex]\\ \tt\longmapsto v^2=10000[/tex]

[tex]\\ \tt\longmapsto v=100m/s[/tex]

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