A kayaker needs to paddle north across a 105-m-wide harbor. The tide is going out, creating a tidal current that flows to the east at 2.0 m/s. The...

A kayaker needs to paddle north across a 105-m-wide harbor. The tide is going out, creating a tidal current that flows to the east at 2.0 m/s. The kayaker can paddle with a speed of 3.4 m/s.(a) In which direction should he paddle in order to travel straight across the harbor?(b) How long will it take him to cross?