Help Needed with Physics Problem (2 runners on circular track)?

Two runners start in opposite directions at the northernmost point of a circular track 20.0 m in radius. If the speed of each runner is constant and is 5.31 km/h for Runner A and 3.44 km/h for Runner B, where will they meet? Where will they meet the second time? Assume that they go around the track on... show more Two runners start in opposite directions at the northernmost point of a circular track 20.0 m in radius. If the speed of each runner is constant and is 5.31 km/h for Runner A and 3.44 km/h for Runner B, where will they meet? Where will they meet the second time? Assume that they go around the track on essentially the same path, with Runner A initially headed west and Runner B initially headed east.
Update: Can anyone help? Thank you!!!
8 answers 8