You ride in a boat on a river flowing at 1.7 m/s (in the
negative y direction). Suppose you would like the boat to move
directly across the river (in the positive x direction) with a
speed of 4.8 m/s.
a.What is the corresponding speed of the boat's velocity
relative to the water?
b.What is the corresponding direction of the boat's velocity
relative to the water (i.e. from the
positive x direction)?