How can I fully understand about Kinematics, Dynamics, Forces. My teacher always solving problems by drawing out forces acting on an object angles and combination of momentums etc... out of blue. Can anyone show me a good source to learn this please?

Question

unklerhaukus · Answer

this question is very vague ,

linyu · Answer

@UnkleRhaukus  Sorry, I tried my best to put into words. Can you tell me how you get this question? So, I can clarify.

unklerhaukus · Answer

it seems like you are having difficulty understanding how you teacher makes free body diagrams

linyu · Answer

@UnkleRhaukus  Yes!

linyu · Answer

@UnkleRhaukus Like how all forces combination equal zero. And how did he imagine the forces' directions etc cancels each others.

unklerhaukus · Answer

newton's laws of motion

linyu · Answer

@UnkleRhaukus Do you know any good resources for fully understand?

unklerhaukus · Answer

https://www.khanacademy.org/science/physics http://videolectures.net/mit801f99_physics_classical_mechanics/

linyu · Answer

@UnkleRhaukus Thanks you!