document.write( "Question 1105127: A car is going at 20.0 m/s. At the same time that it reaches the beginning of a kilometre-long track, it starts accelerating at 5.00m/sē. How long does it take the car to go around the track once? \n" ); document.write( "
Algebra.Com's Answer #719858 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! A car is going at 20.0 m/s. At the same time that it reaches the beginning of a kilometre-long track, it starts accelerating at 5.00m/sē. How long does it take the car to go around the track once? \n" ); document.write( "------------- \n" ); document.write( " \n" ); document.write( "1000 = 2.5t^2 + 20t \n" ); document.write( "t^2 + 8t - 400 = 0 \n" ); document.write( "t =~ 16.396 seconds \n" ); document.write( " |