At the center of a 50-m-diameter circular ice rink, a 75 kg skater traveling north at 2.5 m/s collides with and holds on to a 60 kg skater who had been heading west at 3.5 m/s.
a. How long will it take them to glide to the edge of the rink?
b. Where will they reach it? Give your answer as an angle north of west.