giuliabua giuliabua

10-08-2016
Physics

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a man walks 30 m to the west, then 5 to the east in 45 seconds

Respuesta :

10-08-2016

His average speed is (35m/45s) = 7/9 meters per second.

His average velocity is (30m W + 5m E) / (45s) = 25 m/s West .

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