The Physics of Kayaking

Kayak paddling seems like a confusing motion. Sincewhich prevent you from having a truly equal distance
water is a liquid when you push against it, it should justto the amount of power you put in. You get all that
move out of the way. But it does not, when you pushpower, it just doesn't fully translate because of things
against the water, you actually move forward insteadthat work to slow you down.
of the water moving. Why is this?If you are still confused by this, don't worry. The best
The reason you move forward has to do withway to imagine it is to think of a river as a huge bowl
something called newtons third law of physics. Youof jello. When you stick your paddle in, its not going to
may remember this rule vaguely from your high schoolmove the jello. When you pull on your paddle in a
physics class, but to refresh your memory, the law is:powerstroke through the jello, your boat will move
For every action (paddle) there is an equal andforward as the paddle doesn't move. This is the third
opposite reaction (movement!).law in action.
What this is saying is that the force you put into aIf you want to get a better, more powerful stroke in
paddle stroke against the water, the pull of the strokekayaking it is important to understand this principal.
along in the water, it will cause an equal amount ofWhen your blade is perpendicular to your boat, you get
forward movement for you through the water! Thisa lot of power and a lot of forward motion. If you turn
rule is more or less true in water but you also have toyour blade sideways you will easily move it through
deal with more complicated factors like drag and windthe water with no power and no forward motion.