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babymother [125]

3 years ago

6

A long distance runner starts a race at 1 m/s. he increases his speed to 3 m/s during the middle of the race and slows down to 2

m/s at the end. in total he runs 2,000 meters in 12 minutes (720 seconds). what is his average speed?

1 answer:

slavikrds [6]3 years ago

6 0

The answer is 2000:720~2.778 m/s

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