A boat heads directly across a river 39 m wide at 3.9 m/s. The current is flowing downstream at 2.4 m/s.

(a) What is the resultant velocity of the boat?
m/s (magnitude)
° (direction)
(b) How much time does it take the boat to cross the river?
s
(c) How far downstream is the boat when it reaches the other side?
m