document.write( "Question 176669: A car travels around a 1 mile oval track at 30mph. The same car does a second lap, how fast does the car need to travel to aveage 60mph for both laps? \n" ); document.write( "

Algebra.Com's Answer #131739 by Edwin McCravy(20055) $\"\"$ $\"About$

You can put this solution on YOUR website!
A car travels around a 1 mile oval track at 30mph. The same car does a second lap, how fast does the car need to travel to aveage 60mph for both laps
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document.write( "60mph is 1 mile in 1 minute or 2 miles in 2 minutes.\r\n" );
document.write( "30mph is half that, 1 mile in 2 minutes, so since\r\n" );
document.write( "2 minutes have already elapsed, he'd already have to\r\n" );
document.write( "have finished the 2 laps in those 2 minutes it's taken\r\n" );
document.write( "him to just finish the first lap.  So he can't possibly\r\n" );
document.write( "average 60mph, even if he could go at the speed of light!\r\n" );
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document.write( "Maybe you don't understand that. If not look at it this\r\n" );
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document.write( "Let's figure out how much time it took the car to travel the first\r\n" );
document.write( "mile lap at 30mph\r\n" );
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document.write( "Now lets figure out how long it would take the car to travel\r\n" );
document.write( "both laps, averaging 60mph:\r\n" );
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document.write( "There is no way he can average 60mph for the\r\n" );
document.write( "two laps, because he has already used up the\r\n" );
document.write( "whole  of a hour just to make the\r\n" );
document.write( "first lap.\r\n" );
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document.write( "Edwin

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