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The Missing Force on a Bracket

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.

Basic Concepts of Statics Particle Rigid Body and Force
The basic quantities of statics and its three models (particle, rigid body and concentrated force), with when to use each.

Fundamental Principles of Statics
The six principles statics rests on, from the parallelogram law to Newton’s laws and gravity, and how each is used in problems.

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.

Dot Product Visualizer: Angles and Projections in 3D
See what the dot product means: the angle between two directions and the part of a force along a line, drawn in 3D with its perpendicular part and a right-angle mark.

Dot Product: Angle Between Vectors and Projection of a Force
Use the dot product to find the angle between two lines and the parallel and perpendicular components of a force.












