Leonardo da Vinci and the resolution of forces. Leonardo (1452–1519) asked himself how the weight of a body, supported by two strings of different length, is apportioned between the two strings.
Three forces are acting at the point D: the tensions
in the strings and the weight
. Leonardo believed that
Was he right? (Source: Les Manuscrits de L´eonard de Vinci, published by Ravaisson-Mollien, Paris, 1890.) Hint: Resolve into a horizontal and a vertical component; do the same for
holds. Express the ratios
in terms of α and β, using trigonometric functions, and compare the results.
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