On a pleasure cruise a boat is traveling relative to the water at a speed of 6.58 m/s due south. Relative to the boat, a passenger walks toward the back of the boat at a speed of 1.84 m/s.
1. What is the magnitude of the passenger's velocity relative to the water?
2. How long does it take for the passenger to cover a distance of 15.2 m on the water?
3. How long does it take for the passenger to walk a distance of 15.2 m on the boat?