----------------Section 1: Tension and Force----------------
In the last post, I went through the principles of Archimede's Principles (Buoyant Force, etc), and explained situation #1.
It's interesting how I was reading some magazines about Pro-Bass fishing, and even the pros mention the importance of the concepts of buoyancy:
"...As for running depth, there's no single time and depth measurement for all these bait [Slender Silent Minnows for Fall Bass]. The bigger the bait the quicker it will sink. Also the line's diameter plays an important role. The thinner the line the quicker the bait will get down; the thicker the line, the more buoyant it is and the slower the bait will descend on the retrieve."
2. Have you ever set the hook (which means pulling the rod abruptly in response to a fish's bite), feel the weight and the force of the fish for a moment, and suddenly lose it? You probably said something like "OHHHHH!!!!" at that time, isn't it (or you cursed, or shacked your head. hehe)? After all, you lost the fish. Keep this thought in mind.
Believe it or not, this situation is SO RELATED to Physics. Most people don't even realize it, or have the curiosity to think about it. So, let's take a couple small steps and think about the situation first. Let's create two different images to illustrate situation #2:
A. There's a fisherman sitting close to his fishing rod, a couple meters away (or feet away, if you prefer).
- He's "still fishing", carefully watching his rod for any bites.
- He's using a very simple rig consisted of a hook, swivel, and weight.
- He's not using a rod holder, neither holding the rod.
Suddenly, he spots the tip of his fish rod bending strongly. He runs there, grabs the rod, and pulls it backwards, abruptly, in response to the fish bite. He feels the heaviness of the fish, but his line suddenly looses, and he feels nothing. He loses the fish.
B. There's a fisherman casting and retrieving constantly at a river site.
- He's casting, carefully reeling his rod to allure the fish.
- He's using a very simple rig consisted of lure, swivel, and a split shot.
- He's holding the rod.
Suddenly, he feels a force pulling his rod, coming through his line. He pulls the rod horizontally right away, in response to the fish bite. He feels the heaviness of the fish for a second, and his lure is once again free in the water. He loses the fish.
Having this two images in mind, we can start thinking about why they lost their fish. Of course some of the the first ideas that comes to our head are the timing of the fish bite (sometimes we set up the hook too late), the behaviors of the fish biting (every species has different behaviors when it comes to eating), and the strength that we use to set the hook (which is the most important factor for us here).
So, it's related to Physics. But what aspect of Physics, though? Do you have any idea? Well...I'll post below the topics that are included in this section, but I'll mainly talk about perfectly inelastic collisions:
2. Inelastic and Elastic Collisions
If you want to read more about Energy, follow the link below: