# ch01 - Chapter1 GeneralPrinciples :Statics...

This preview shows pages 1–13. Sign up to view the full content.

Engineering Mechanics: Statics Chapter 1 General Principles

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Chapter Objectives To provide an introduction to the basic quantities and  idealizations of mechanics. To give a statement of Newton’s Laws of Motion and  Gravitation. To review the principles for applying the SI system of  units. To examine the standard procedures for performing  numerical calculations. To present a general guide for solving problems.
Chapter Outline Mechanics Fundamental Concepts Units of Measurement The International System of Units Numerical Calculations General Procedure for Analysis

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
1.1 Mechanics Mechanics can be divided into 3  branches: - Rigid-body Mechanics - Deformable-body Mechanics - Fluid Mechanics Rigid-body Mechanics  deals with  Statics  - Dynamics
1.1 Mechanics Statics  – Equilibrium of bodies At rest Move with constant velocity Dynamics  – Accelerated motion of  bodies

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
1.2 Fundamentals Concepts  Basic Quantities Length  – Locate position and describe size of physical  system – Define distance and geometric properties of a  body Mass  – Comparison of action of one body against  another – Measure of resistance of matter to a change in  velocity
1.2 Fundamentals Concepts  Basic Quantities Time  – Conceive as succession of events Force – “push” or “pull” exerted by one body on another – Occur due to direct contact between bodies  Eg: Person pushing against the wall – Occur through a distance without direct contact  Eg: Gravitational, electrical and magnetic forces

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
1.2 Fundamentals Concepts Idealizations Particles  – Consider mass but neglect size Eg: Size of Earth insignificant compared to its  size of orbit Rigid Body – Combination of large number of particles  – Neglect material properties Eg: Deformations in structures, machines and  mechanism
1.2 Fundamentals Concepts Idealizations Concentrated Force  – Effect of loading, assumed to act at a point  on a body  – Represented by a concentrated force,  provided loading area is small compared to  overall size Eg: Contact force between wheel and ground

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
1.2 Fundamentals Concepts Newton’s Three Laws of Motion First Law “A particle originally at rest, or moving in a  straight line with constant velocity, will remain  in this state provided that the particle is not  subjected to an unbalanced  force”
1.2 Fundamentals Concepts Newton’s Three Laws of Motion Second Law “A particle acted upon by an  unbalanced  force   F  experiences an acceleration  a  that  has the same direction as the force and a  magnitude that is directly proportional to the  force”  ma F =

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
1.2 Fundamentals Concepts
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 11/09/2011 for the course STATICS 001 taught by Professor Statics during the Three '11 term at ADFA.

### Page1 / 44

ch01 - Chapter1 GeneralPrinciples :Statics...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online