Help with Forces - Get Answers & Diagrams for Net Force, Friction, Inclines

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SUMMARY

This discussion focuses on resources for understanding forces in physics, particularly net forces, friction, and inclined planes. The user expresses difficulty due to inadequate teaching during a critical chapter and seeks websites with clear diagrams and explanations. Key formulas mentioned include Net Force = Mass * Acceleration and Weight (W) = Mass * Gravity, along with the application of trigonometric functions for forces at angles. The Georgia State treatment of friction is highlighted as a valuable resource for further learning.

PREREQUISITES
  • Understanding of basic physics concepts, including force and motion.
  • Familiarity with Newton's laws of motion.
  • Knowledge of trigonometric functions as they apply to physics problems.
  • Basic understanding of static and kinetic friction.
NEXT STEPS
  • Explore the Georgia State treatment of friction for comprehensive explanations.
  • Research the concept of inclined planes and their effect on forces.
  • Learn about static vs. kinetic friction and their applications in real-world scenarios.
  • Study additional resources like Khan Academy's physics section for visual aids and practice problems.
USEFUL FOR

Students struggling with physics concepts, particularly those dealing with forces, friction, and inclined planes, as well as educators seeking supplementary resources for teaching these topics effectively.

austin1250
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Is there any like websites that have pretty good diagrams and explanations of how to go about Force problems. Problems containing Net forces, Friction, etc. I am just really lost because our physics teacher (who already is a bad teacher) left for 2 weeks since he had a baby right when we were about to begin a new chapter, and left us with some random sub who took a class of physics in college but doesn't really know anything. Therefore he just goes through powerpoints not explaining anything.

I figured out for the most part how to do like

Net force = Mass * Acceleration

W= Mass * gravity

i know how to do something pulled at an angle like

Fg *cos(beta)
or fg *sin(beta)

I basiclly get lost when friction is thrown into the mix ( like static and kinetic ) and objects on an incline.
 
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