Your friend and you are both in Calgary for a chess tournament. You each drive your own vehicle to CrossIron Mills mall. You take Stoney Trail (a freeway that goes around the city) and your friend takes Deerfoot Trail (a freeway that goes through the city) Explain how when you slammed on the brakes at a red light, your acceleration was not negative.

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A: This problem can be solved using fundamental equations of motion

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Q: car’s acceleration

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Q: displacement

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