A river that is 207 m wide flows due east at a uniform speed of 1.9 m/s. A boat with a speed of 8.0 m/s relative to the water leaves the south bank pointed in a direction 30° west of north.
(a) What is the magnitude of the boat's velocity?
(b) What is the direction of the boat's velocity relative to the ground?
° west of north
(c) How long does the boat take to cross the river?
s