# Calculate distance given accleration, initial & final speed

AQuestionX
dleted due to error

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Seannation
The equation you've used is finding time, not distance.

The equation to use in this case is:

$$v^2 = u^2 + 2as$$

Where v is the final speed, u is the initial speed, a is the acceleration and s is the displacement.

Rearrange this to find s.

Remember that the driver is decelerating, so the acceleration is -2.68 ms^-2.