What is the formula I need to answer this problem?

Question

A car with an initial speed of 21.5 km/hr accelerates at a uniform rate of .92 m/s2 for 2.9 s. The final speed is 8.6407. I need to find the dispacement of the car after that time?

Please & Thank You!

Answer 1

Problem with your question.

The car accelerates and yet the final speed is lower than the initial speed.

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Answer 2

D = 0.5AT^2 + VT

Don't forget to get everything into the same units