Physics, 18.09.2019 06:00 Esme1995

John is traveling north at 20 meters/second and his friend betty is traveling south at 20 meters/second. if north is the positive direction, what are john and betty's speeds? -20 meters/second, 20 meters/second 20 meters/second, 20 meters/second -20 meters/second, -20 meters/second 0 meters/second, 40 meters/second done

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John is traveling north at 20 meters/second and his friend betty is traveling south at 20 meters/sec...