question #1 reference q.46909 \for fun! - research\: how does a sailboat captain use vectors to \tack…

Brief Explanations:

A sailboat captain uses vectors to tack against the wind by understanding the direction and magnitude of the wind - vector and the boat - vector. The wind exerts a force (a vector quantity) on the sails. By adjusting the angle of the sails relative to the wind direction, the captain can break the wind - force vector into components. One component can be used to move the boat forward even when the wind is coming from a direction nearly opposite to the desired direction of travel. For example, if the wind is blowing directly from the north, the captain can set the sails at an angle (say 45 degrees to the left and right of the north - south axis) and use the side - to - side and forward components of the wind - force vector to zig - zag (tack) towards the south.

Answer:

A sailboat captain breaks the wind - force vector into components by adjusting sail angles to use a forward - moving component and tack against the wind.