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Physics of fly fishing
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Physics of fly fishing
Newton's first law
Displacement
In the case of fly fishing Newton’s first law applies when the actual fly lure is casted. It is staying still but when the line is thrown so is the lure. The external force is the line acting upon the fly
The obvious principal is displacement. if you have a general understanding of fishing you know that the lline and lure have to go somewhere away from the end of the rod and into the water so displacement is nessacary when fly fishing
Newton's second law
Waves
Friction
Work
Gravity
This cast is also an example of Newton’s second law. The lure is still and has no acceleration but when the line moves the fly does as well. The heavier something is the more acceleration it has, so most professional fisherman will dip their lure in the water before fishing so that it can pick up water and become heavy
This principal is shown when the fly is thrown through the air. It is so light that the air makes it slow down. Of course fly makers know this so they use it to their advantage and make flies that lay on the water softly and quietly
A pretty obvious choice because everything on earth has gravity. When the fly is casted gravity helps bring it to the water instead of it just going on and on
This is easily shown when the arm casts the line and pushes the rod forward. The equation is work equals force times displacement.
waves was hard to find because it isnt clearly shown. The waves become apparent when the line is flung back/forth . The rod shots waves back and they can be seen in the bend of the line
acceleration
The third law
Acceleration is an obvious choice because the fly accelerates while being swung in the air.
Newton’s third law is demonstrated when the fly is flung. The rod is flicked before the fly launches forward. So the law that states for every action the is an equal and opposite reaction it is shown in the case if fly casting
power
It takes power to move the rod so of course this physics principle is a choice. Power is seen as the arm moves the rod. Even though it doesnt weigh much it is a little hard to swing your arm with the weight of the line