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Erschienen in:
1982 | OriginalPaper | Buchkapitel
Equilibrium of a rigid body
verfasst von : C. W. Celia, A. T. F. Nice, K. F. Elliott
Erschienen in: Advanced mathematics 2
Verlag: Macmillan Education UK
Enthalten in: Professional Book Archive
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When a rigid body is in equilibrium suspended by a string, it is acted on by two forces only. The tension in the string acts vertically upwards and the weight of the body acts vertically downwards. These two forces must be equal in magnitude and they must act along the same line, or else they would form a couple and rotate the body. This shows that the centre of gravity of the body must be in the same vertical line as the point of suspension.