One rainy day, a girl broke up with her boyfriend after being together for five long years. They decided to separate at a place where everything about them began, at the same time.

The boy is due North crying and running at a rate of 5ft/sec and the girl is walking due East at a rate of 1ft/sec thinking if she made the right decision. b) And at that moment, the girl decided to pursue his boyfriend If the girl took the shortest possible path, how fast should she be able to catch up with her boyfriend?