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Tag Archive for: rigid body

Moment of Inertia

Moment of Inertia: Formulas, Tensor, and Key Equations

June 18, 2019
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0 Comments
What Is Moment of Inertia? Moment of inertia is a rigid body property that relates torque to rotational acceleration, playing the same role that mass…
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angularvelocity

Elementary Construction of the Angular Velocity

June 2, 2016
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1 Comment
Physics books seldom contain an accurate definitions of the angular velocity of a rigid body. I believe that the following construction is as simple as…
https://www.physicsforums.com/insights/wp-content/uploads/2016/06/angularvelocity.png 135 240 wrobel https://www.physicsforums.com/insights/wp-content/uploads/2019/02/Physics_Forums_Insights_logo.png wrobel2016-06-02 17:06:592021-04-17 15:48:05Elementary Construction of the Angular Velocity
lightspeedrod

Why a Rigid Rod Can’t Send Faster-Than-Light Signals

September 25, 2015
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52 Comments
A perfectly rigid rod cannot send faster-than-light (FTL) signals because no such rod exists. Every real material transmits mechanical disturbances at…
https://www.physicsforums.com/insights/wp-content/uploads/2015/09/lightspeedrod.png 135 240 Multiple_Authors https://www.physicsforums.com/insights/wp-content/uploads/2019/02/Physics_Forums_Insights_logo.png Multiple_Authors2015-09-25 13:32:072026-07-31 10:51:52Why a Rigid Rod Can’t Send Faster-Than-Light Signals

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