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

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Several users recommend websites with clear diagrams and explanations for understanding force problems, particularly regarding net forces and friction. A common challenge is integrating friction, both static and kinetic, into calculations involving inclined planes. The discussion highlights the importance of visual aids and comprehensive resources to aid in grasping these concepts, especially when classroom instruction is lacking. HyperPhysics is mentioned as a valuable resource for detailed information on friction and related topics. Accessing quality educational websites can significantly enhance understanding of complex physics problems.
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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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