1. The problem statement, all variables and given/known data 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. 2. Relevant equations VAC=VAB+VBC, then Vbg=Vbw+Vwg 3. The attempt at a solution I tried tan-1 (4.043/3.138)= 52.2 as theta 3.138(cos)(52.2)=1.92 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.