A person in a rowboat crosses a river which flows with 4.043 km/hr. The person rows with maximum velocity of 3.138 km/hr relative to the water (measured while rowing on a still lake) and heads the boat straight across the river - along a line at 90 degrees with respect to the river shore pointing to a point on the opposite shore. How far downstream from this point in km does the person reach the opposite shore if the river is 0.2773 km wide.
The Attempt at a Solution
I tried tan-1 (4.043/3.138)= 52.2 as theta
then i thought i have to divide the width. (.2773/1.92)=.1444
but thats wrong, i tried this problem over and over again and i just dont know what im doing wrong.