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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?
Mathematics
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answer:
slavikrds
[6]
3 years ago
6
0
The answer is 2000:720~2.778 m/s
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