Imagine a boat that travels at 2.6 m/s in still water. (a) In which direction should the boat point its bow to travel directly across a 1.00-km wide

Imagine a boat that travels at 2.6 m/s in still water. (a) In which direction should the boat point its bow to travel directly across a 1.00-km wide river if the river flows downstream at 1.0 m/s? (b) What is the time interval for the trip, expressed in minutes?