Physics, 07.11.2019 18:31, bandiadummy8595

Mr white ran from his home to a book store 400 meters away at an average speed of 2 meters per second. he walked back to his home at an average speed of 1 meter per second. what is the average speed of the whole journey

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Mr white ran from his home to a book store 400 meters away at an average speed of 2 meters per secon...