Having trouble trying to relearn physics

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Discussion Overview

The discussion revolves around the challenges of relearning introductory physics concepts, particularly kinematics, and the experiences of participants as they navigate problem-solving in this area. The scope includes personal reflections on learning processes, difficulties faced with specific problems, and aspirations for deeper understanding in physics.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant expresses difficulty with kinematics problems, specifically involving a stone thrown vertically, and questions whether others faced similar challenges when learning physics.
  • Another participant shares their experience of struggling with similar introductory problems but emphasizes that improvement comes with practice.
  • A participant reflects on the need for a different heuristic approach to apply math to physical problems, suggesting that persistence in problem-solving will lead to improvement.
  • Some participants discuss their current studies in more advanced topics, such as particle physics and fluid mechanics, while acknowledging the importance of mastering foundational concepts first.
  • There is a desire expressed by one participant to not only learn physics equations but to truly understand the underlying principles and their applications in real-world scenarios.
  • Participants encourage each other to continue practicing and reassure that struggles are a common part of the learning process.

Areas of Agreement / Disagreement

Participants generally agree that struggling with introductory physics problems is a common experience and that persistence is key to improvement. However, there is no consensus on specific methods or approaches to mastering these concepts, as experiences and perspectives vary.

Contextual Notes

Some participants mention specific topics and concepts they are currently studying or wish to understand better, indicating a range of knowledge levels and interests. The discussion reflects a mix of personal anecdotes and aspirations without resolving the complexities of learning physics.

Who May Find This Useful

This discussion may be useful for individuals who are relearning physics, particularly those facing challenges with introductory concepts and seeking encouragement and shared experiences from peers.

Entr0py
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I'm trying to relearn physics the summer. I've been studying some basic calculus and I've enjoyed it. But I'm going back to solving problems that don't involve any calculus, such as kinematics (like using the suvat equations). Now the problem is I'm having a very difficult time solving some questions,specifically a stone being thrown vertically upward off the edge of a cliff, then I have to find its speed before it hits the ground, time in air, total distance. One such problem took me about 30 mins to do. When you guys were learning physics were you guys troubled with this kind of introductory stuff?
 
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I was. I'll be honest, I'm only 17. I have been practicing particle physics for about a year now, but started with the basics. Some of those questions like that were really tough, but you get better with practice. As of right now(a year after starting), I am working in warp theory, and think back a lot. I am sure you will get better.
 
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Entr0py said:
I'm trying to relearn physics the summer. I've been studying some basic calculus and I've enjoyed it. But I'm going back to solving problems that don't involve any calculus, such as kinematics (like using the suvat equations). Now the problem is I'm having a very difficult time solving some questions,specifically a stone being thrown vertically upward off the edge of a cliff, then I have to find its speed before it hits the ground, time in air, total distance. One such problem took me about 30 mins to do. When you guys were learning physics were you guys troubled with this kind of introductory stuff?

The first time I took a Physics class? You betcha. It's an entire different heuristic scheme you need to learn to apply math to physical problems. Keep doing problems, you'll get better.
 
Student100 said:
The first time I took a Physics class? You betcha. It's an entire different heuristic scheme you need to learn to apply math to physical problems. Keep doing problems, you'll get better.
Thanks for the reply. I like doing the problems and I love the challenge. Nevertheless I get frustrated at myself for not being able to solve these sorts of problems.
 
Entr0py said:
Thanks for the reply. I like doing the problems and I love the challenge. Nevertheless I get frustrated at myself for not being able to solve these sorts of problems.

We all start somewhere. Keep it up.
 
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Allen Beers said:
I was. I'll be honest, I'm only 17. I have been practicing particle physics for about a year now, but started with the basics. Some of those questions like that were really tough, but you get better with practice. As of right now(a year after starting), I am working in warp theory, and think back a lot. I am sure you will get better.
Very cool. That must've take a lot of dedication and passion. Today I watched a video on fluid mechanics (specifically finding the rate at which water leaves a cone using the chain rule and volume for a cone). It was fun to watch. I'm just grinding through the rudimentary stuff now and maybe in a couple years can actually study e and m.
 
Student100 said:
We all start somewhere. Keep it up.
Humble quote. Really puts things in perspective for me. Thanks a lot it means a lot to me.
 
No problem dude, glad i could help. Pretty good at physics i am, so you have any other questions?
 
Allen Beers said:
No problem dude, glad i could help. Pretty good at physics i am, so you have any other questions?
Is there a point in your career so far where you not only learned the physics (eg the equations, theories, postulates) but actually understood them? What i mean is if you saw Newton's second law you could understand why f net equals m a? Or why work equals the line integral of f dot ds? Or maxwell's equations? Or the fluid equations in cosmology? I know that such things and formulas are out there but I want to one day: 1) apply them in problems in textbooks and online on pf; and 2) I want to understand nature to the best of my capacity
 
  • #10
Its good that you want to understand everything. Can you pm me the questions? Also, I try to understand everything I learn, so yes, I have learned, and understood.
 
  • #11
Allen Beers said:
I have been practicing particle physics for about a year now,
What do you mean?
 
  • #12
The first physics class I ever took was the hardest for me. I spent hours doing that kind of problem over and over again and still struggled. If you keep up, it'll get better, your problem-solving skills are just getting sharpened.
 

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