help me to solve mathematics question below?

Question

imagine yourself at the junction, where two perpendicular roads meet. you happen to sight someone very adorable at a distance 100m from the junction at the junction. At a given instant that someone is walking at a speed of v m/s. you hope to catch up and try your luck to chat with that person by walking 2v m/s, ALWAYS TOWARDS THE TARGET..what is your PATH ? will you able to catch up with that person?? you have to consider setting up a differential equation...you can simplify the solution of the differential equation by differentiating and then solve the first order diffrential equations.........

Answer 1

bOb = D