Question 1097101
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A race car travels northward on a straight, level track at a constant speed travels 0.754 km in 21.0 s. 
The return trip over the same track is made in 26.0 s. What is the average velocity for the total trip?
 

Incorrect: Your answer is incorrect. .
  m/s 
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How can you know in advance that my answer is incorrect if I even didn't write it?


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