Abstract:Nonsense! No mass can change its state of motion unless a force acts on it. But acceleration without any force is just what introductory textbook authors are implying when their only explanation of ch...Nonsense! No mass can change its state of motion unless a force acts on it. But acceleration without any force is just what introductory textbook authors are implying when their only explanation of changes in rotational motion is the conservation of angular momentum with no mention of any force. Conservation laws connect the initial and final states of a system, correctly predicting the final state, but they do not reveal how the change is made or what forces are acting to produce that change. This paper discusses two applications found in introductory texts and includes some dynamics that clarify the motions.Read More
Publication Year: 2003
Publication Date: 2003-02-14
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 4
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