- 1). Square the time it takes the car to complete a lap. If it takes 9 seconds:
9 ^ 2
= 81 - 2). Multiply 1.227 by the lap's radius. If the radius if 100 feet:
1.227 * 100
= 122.7 - 3). Divide your answer by your answer from step 1.
122.7 / 81
= 1.51 feet per second squared
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