Mathematics, 23.06.2019 01:30 galaxychild101

Acar is traveling at 20 meters/second and is brought to rest by applying brakes over a period of 4 seconds. what is its average acceleration over this time interval? a. it has no acceleration. b. its acceleration is 20 meters/second2. c. its acceleration is -5 meters/second2. d. its acceleration is 5 meters.

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