A rowboat crosses a river with a velocity

of 1.01 m/s at an angle 30◦ North of West
relative to the water.
Water’s frame of reference:
speed of boat: 1.01 m/s
direction from current: 30◦

The river is 322mwide and carries a current
of 1.63 m/s due East.

Shore’s frame of reference:
current of water:1.63 m/s
distance shore to shore: 322 m

When the boat reaches the opposite bank,
how far East or West (downstream “+” or
upstream “−”) from its starting point (on the
opposite bank) does it land.
Note: In your answer, take an Eastward
displacement to be positive and a Westward
displacement to be negative.
Answer in units of m.