Solve the each part of given question:
Question: My friend Joe lives 2 Km north of my home. I start walking north from my home (at t = 0) at constant speed |v1| = 1 m/s. Joe starts walking south from his home after 200 s, with constant velocity |v2| = 1.5 m/s.
Part A: At what time are we going to meet?
Part B: How far from Joe's home are we going to meet?
I know the correct answer for above problem but explain how to get this answer! Thanks.