Intro to Statics!

1.1 Mechanics Explains and predicts physical phenomenon through the study of rigid, deformable, or fluid objects under the action of forces.

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The mechanics of rigid bodies is subdivided into:

 
Statics:

 
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Dynamics:











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 Mechanics of Materials,  because no material is perfectly rigid...

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Incompressible fluids 
- liquids:

Compressible fluids 
- gas

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In summary...

What Can You Do with Statics Knowledge?

Calculate the force in each member of this structure (a truss) in order to design it to withstand the loads that it will experience.

Determine the forces that this prosthetic arm will need to withstand to make exercise possible for the wearer.

Design the joints and support of the Shuttle Remote Manipulator System (SRMS) so that it can be used to pick up and support various payloads.

1.2  Fundamental Concepts and Principles

Aristotle (384-322)
Father of logic and deductive reasoning.

"In all things of nature there is something of the marvelous."

Archimedes (287-212)
greatest mathematician of antiquity

"The shortest distance between two points is a straight line"
 

"Eureka! - I have found it!"

Center of mass, boyancy

Newton (1642-1727)"
For every action, there is an equal (in size) and opposite (in direction) reaction force.

"I can calculate the motion of heavenly bodies, but not the madness of people."

Einstein (1879-1955)




“The more success the quantum theory has, the sillier it looks.”
—Albert Einstein --- To Heinrich Zangger – May 20,1912


Newton...

Example:
What is the gravitational acceleration on Mars?