Example 1.2
A man wishes to travel due north in order to cross
niver Skin wide flowing due cast at 3 kmhur i he
can now at 10 kmhrl in still water. Find outher
scale drawing or by calculation:
(1) the direction in which he must head his boat
in order to get to his destination directly
opposite his starting point,
the resultant velocity of the boat in the river,
(ii) the time taken to cross the river,
(iv) how far from his destination he would land if
he ignorantly steers northwards