To truly master mechanics, you must attack problems by conceptual theme. Below is a thematic table with direct links to .
Once you understand the solution, put it away and try to derive the entire result from scratch the next day. Summary Table: Mechanics Problem Difficulty Contest Level Focus Areas Recommended Resource Intro (F=ma / NSEP) Kinematics, Newton's Laws AAPT Archives Intermediate (USAPhO) Rigid Body Rotation, Thermodynamics David Morin’s Problems Advanced (IPhO / APhO) Relativistic Mechanics, Lagrangians IPhO Past Papers Conclusion To truly master mechanics, you must attack problems
The normal force (N) is equal to the weight of the block minus the vertical component of the force: To truly master mechanics