Int. Phys.

The Problem:
Runner A is initially 6.0 km west of a falgpole and is running with a constant velocity of 9.0 km/h due east.

Runner B is initially 5.0km east of the flagpole and is running with a constant velocity of 8.0 km/h due west. What will be the distance of the two runners from the flagpole when their paths cross?

The Answer: .2km West of the flagpole.

I know this is simple shit, but for some reason my mind is freezing when it comes down to HOW this answer is acquired.

Draw a picture, set up a coordinate system, and write an expression for the position of each runner in terms of t. Set the two equal to each other (when the paths cross)and solve for t. Then plug that t back into either expression.

Oh, then GTFO and kill yourslef.