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A car accelerates from rest to 30 m/s in 4.2 s. What is the car's acceleration?

User Pan Yan
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In order to find the car's acceleration, we need to list the following:

  • Initial Velocity
  • Final Velocity
  • Time

The initial velocity is going to be zero since the car is accelerating from rest.

Initial velocity = 0 m/s

The final velocity is going to be 30m/s.

Final velocity = 30 m/s

The time is 4.2s.

The formula for acceleration is:


a=(Finalvelocity-InitialVelocity)/(Time)


(30-0)/(4.2) =7.14..

That will be the car's acceleration.

User Alex Parker
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