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<Jenn>
Posted
How do I explain inertia and can you please give me an example. Thx
 
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Diamond Enthusiast

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The law of inertia states that:
A body will preserve its velocity and direction so long as no force in its motion's direction acts on it.

For example: a package thrown out of an airplane will continue to move at the speed of the airplane on the horizontal axis (in the direction of the airplane's movement). Since the law of gravity acts on the package (a vertical downward axis), the package will gather speed along the vertical axis, but on the horizontal axis its speed will remain equal to that of the airplane.

(In this explanation we have left out the force of air-resistance).

The above and more examples and information can be read at the following site:
http://muse.tau.ac.il/museum/galileo/the_law_of_inertia.html
 
Posts: 4526 | Location: ~somewhere else~ | Registered: 06-03-02Reply With QuoteReport This Post
Diamond
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This site contains another very good explanation of all of Newton's laws of motion:
http://www.glenbrook.k12.il.us/gbssci/phys/Class/newtlaws/newtltoc.html
 
Posts: 7360 | Location: Baltimore, MD, U.S.A | Registered: 06-03-02Reply With QuoteReport This Post
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