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May 25, 2015

Homework Help: physics

Posted by sammy on Saturday, September 29, 2012 at 8:05pm.

At the Indianapolis 500 time trials, each car makes four consecutive laps, with its overall or average speed determining that carís place on race day. Each lap covers 2.5 (exact). During a practice run, cautiously and gradually taking his car faster and faster, a driver records the following average speeds for each successive lap: 200 , 210 , 220 , 230 .
His average speed will be






His average speed will be





exactly the average of these speeds (215 ).





greater than 215 .





less than 215 .

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