Because a sailboat cannot sail directly into the wind, and traveling straight downwind is usually slow, the shortest sailing
distance is rarely a straight line. thus sailboats tack upwind—the familiar zigzag course—and jibe downwind. a tactician's
decision of when to tack and where to go can determine the outcome of a race. describe the process of tacking a sailboat
as the wind shifts direction. sketch a block diagram depicting tills process.