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The Question of the Momentum

Published online by Cambridge University Press:  03 November 2016

G.H. Grattan-Guinness
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Extract

“ … And so the impulse of the blow is equal to the change of momentum of the body.”

This phrase, coming at the conclusion of a more or less standard lesson in Elementary Mechanics, must surely have struck many teachers with a feeling of shame for having participated in a piece of not entirely straightforward work, and their pupils with an idea that they have witnessed some downright “wangling”. The usual impulse-momentum treatment cannot but be unsatisfactory to all concerned in the lesson, for it follows on the introduction of a new quantity of measurement of which, as so many of the text-books plaintively remark, “no special name has been given to the unit”.

Type
Research Article
Information
The Mathematical Gazette , Volume 17 , Issue 226 , December 1933 , pp. 298 - 299
Copyright
Copyright © The Mathematical Association 1933 

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