Comments on: How would a car made out of paper and film caps exhibit inertia at rest? http://www.cargearusa.com/blog/how-would-a-car-made-out-of-paper-and-film-caps-exhibit-inertia-at-rest/ Fri, 18 May 2012 02:49:51 +0000 http://wordpress.org/?v=2.7 hourly 1 By: kirchwey http://www.cargearusa.com/blog/how-would-a-car-made-out-of-paper-and-film-caps-exhibit-inertia-at-rest/comment-page-1/#comment-5848 kirchwey Thu, 04 Jun 2009 21:53:43 +0000 http://www.cargearusa.com/blog/how-would-a-car-made-out-of-paper-and-film-caps-exhibit-inertia-at-rest/#comment-5848 Inertia could be demonstrated by putting the car on a sheet of paper and then yanking the paper away. The car will move some, but slides some and doesn't keep up with the paper. If its wheels were sliding frictionlessly on the paper it wouldn't move at all. It slides because staying with the accelerating paper would require a force (due to its mass and the rotational inertia of the wheels) that is larger than the friction force. Inertia could be demonstrated by putting the car on a sheet of paper and then yanking the paper away. The car will move some, but slides some and doesn’t keep up with the paper. If its wheels were sliding frictionlessly on the paper it wouldn’t move at all. It slides because staying with the accelerating paper would require a force (due to its mass and the rotational inertia of the wheels) that is larger than the friction force.

]]> By: Mr. Me http://www.cargearusa.com/blog/how-would-a-car-made-out-of-paper-and-film-caps-exhibit-inertia-at-rest/comment-page-1/#comment-5847 Mr. Me Mon, 01 Jun 2009 17:08:55 +0000 http://www.cargearusa.com/blog/how-would-a-car-made-out-of-paper-and-film-caps-exhibit-inertia-at-rest/#comment-5847 Inertia: Without outside forces, a body at rest remains at rest, while a body at motion remains in motion. This applies whether referring to a piece of tissue, or a huge rock. Inertia: Without outside forces, a body at rest remains at rest, while a body at motion remains in motion.

This applies whether referring to a piece of tissue, or a huge rock.

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