How can I improve my understanding of kinematics and force in physics?

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SUMMARY

The discussion centers on the challenges faced by students in understanding kinematics and force in physics, particularly when using the textbook "Fundamentals of Physics" by Halliday. A participant expresses frustration over their inability to solve problems despite extensive reading and tutoring. Key insights include the importance of vector addition in determining the direction of acceleration, emphasizing that the net force's direction dictates acceleration. Participants are encouraged to share specific problems to receive targeted assistance.

PREREQUISITES
  • Understanding of basic physics concepts such as force and acceleration.
  • Familiarity with vector addition and its application in physics.
  • Knowledge of trigonometry for resolving forces into components.
  • Ability to interpret and analyze word problems in physics.
NEXT STEPS
  • Study the principles of vector addition in physics.
  • Learn how to apply Newton's Second Law in various scenarios.
  • Practice solving word problems related to kinematics and forces.
  • Explore supplementary resources such as online physics tutorials or videos.
USEFUL FOR

Students struggling with physics concepts, particularly those focusing on kinematics and force, as well as educators seeking to provide better support for learners in these areas.

oscarkool2
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Homework Statement



I read the book, I read my teachers notes, I go to do a problem and I have no idea what to do. I go to the tutors but I don't understand what's going on. Dealing with kinematics and force right now but I still have no idea what the hell is going on.



Homework Equations



I need a resource that can teach me how to understand physics. My textbook, Fundamentals of Physics by Halliday is complete trash, I have read the assigned chapters over and over and when I approach each and every problem, I have no idea what's going on.



The Attempt at a Solution



I think I suck at word problems. For example, this question gives me a coordinate with some forces on it and asks me which direction is the acceleration. Um, I have no idea and have seemed to miss where the book mentions how to find the direction of acceleration. What am I doing wrong? Spent 16+ hours on physics and haven't learned a thing.
 
Physics news on Phys.org
When you add your forces together (you may need a little trig), the direction of the net force will be the direction of the acceleration. For example, the force of gravity is vertical. Therefore thing that are dropped accelerate down. Post your problem and describe where you get stuck.
 

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