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The acceleration of a car is – 0.75 ms 2. If its initial velocity is 12.0 ms"!, what is its
velocity 2.5 seconds later?

Respuesta :

  • Initial velocity=u=10m/s
  • Time=t=2.5s
  • Acceleration=a=-0.75m/s^2

  • Final velocity=v

Using first equation of kinematics

[tex]\\ \rm\hookrightarrow v=u+at[/tex]

[tex]\\ \rm\hookrightarrow v=12+(-0.75)(2.5)[/tex]

[tex]\\ \rm\hookrightarrow v=12-1.9[/tex]

[tex]\\ \rm\hookrightarrow v=10.9m/s[/tex]

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