Posted by SC on Tuesday, November 24, 2009 at 8:41pm.
Lee is running around the perimeter of a circular track at a rate of 10 ft/sec. The track has a radius of 100 yards. After 10 seconds, Lee turns and runs along a radial line to the center of the circle. Once he reaches the center, he turns and runs along a radial line to his starting point on the perimeter. Assume Lee does not slow down when he makes these two turns. How far has he travelled once he returns to his starting position?

Math  Reiny, Tuesday, November 24, 2009 at 8:49pm
Question is easier than it seems.
The only tricky part is to find the distance he covers around the circle in the first 10 seconds, and that will be measured in feet, while the distance to the centre is measured in yards.
So Lee runs for 10 seconds at 10 ft/s, then 100 yards, and then another 100 yards
= 100 + 300 + 300 feet = 700 feet

Math  sss, Tuesday, February 15, 2011 at 2:34am
wrong!

Math  shahood, Thursday, March 1, 2012 at 2:22am
^ 700 is right idiot...
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