Chapter 1

# Chapter 1 - Chapter 1 Introduction to Statics Mechanics a...

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Chapter 1- Introduction to Statics Mechanics: a. What is Mechanics? a. The physical science that deals with the effects of forces on objects. b. What are the two parts of Mechanics? a. Statics: equilibrium of bodies under action of forces b. Dynamics: the motion of bodies c. Define the following terms: a. Space: geometric region occupied by bodies whose positions are described by linear and angular measurements relative to a coordinate system. Three dimensional problems, three coordinates are needed and 2 dimensional, 2 coordinates are needed. b. Time: measure of the succession of events. c. Mass: Measure of inertia of a body d. Force: action of one body on another. Tends to move a body in the direction of its action. e. Particle: a body of negligible dimensions. f. Rigid body: A body is considered rigid when the change in distance between any two of its points is negligible. d. What are the quantities used in mechanics? a. Scalars: quantity that only has a magnitude b. Vector: quantity that has a magnitude and direction.

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