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a car traveling due east at 20 m/s reverses its direction over a period of 10 seconds so that it is traveling due west at 20 m/s. What is the direction of the car's average acceleration over this period?
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Runner A is initially 5.9 km west of a flagpole and is running with a constant velocity of 8.3 km/h due east. Runner B is initially 4.8 km east of the flagpole and is running with a constant velocity of 7.6 km/h due west ...
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