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Two Edges of a Box

Introduction to Statics: Concepts, Principles and Units
Start statics here: its basic models and principles, SI and U.S. units, and a five-step method for solving problems, with practice problems and unit converters.

What Is Mechanics
Learn what mechanics studies, how it splits into statics, dynamics and other branches, and why statics comes first.

Scalars and Vectors in Statics
What makes force a vector, how vectors are drawn and written, and how free, sliding and fixed vectors differ.

Moment and Torque Converter
Convert moments and torques between N·m, N·mm, kN·m, lbf·in, lbf·ft, kip·ft, kgf·m and more, with exact factors and the steps shown.

Force Resolver: Split a Force Along Any Two Directions
Split a force into two parts along any two directions, perpendicular or not, or into x and y parts from an angle or a slope, with every step shown on the drawing.

Adding Forces: Parallelogram Law and Triangle Rule
Find the resultant of two or more forces with the parallelogram law, the triangle rule and the laws of sines and cosines.













