Difference between revisions of "User:Msf24"
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let <math>M</math> be the Mass of the toilet paper roll | let <math>M</math> be the Mass of the toilet paper roll | ||
| − | let <math>I</math> be the rotational inertia of the roll ( = <math>\frac{1}{2}</math> | + | let <math>I</math> be the rotational inertia of the roll ( = <math>(\frac{1}{2})(M)(R)^2</math> |
Revision as of 03:38, 30 December 2009
Work to see how fast one must pull on toilet paper to get it to tear:
let \(f\) be the force required to tear it
let \(M\) be the Mass of the toilet paper roll
let \(I\) be the rotational inertia of the roll ( = \((\frac{1}{2})(M)(R)^2\)
Variations/Modifications:
You could require the students to derive \(I\)
You could require the students to calculate \(M\) given information about the dimensions and how heavy some toilet paper is
