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" If three forces acting at a point are in equilibrium they can be represented in magnitude and direction by the three sides of a triangle taken in order. "
Applied Mechanics - Page 11
de Charles Edward Fuller, William Atkinson Johnston - 1913
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Outlines of Natural Philosophy: Being the Heads of a Course ..., Volumes 1 à 2

James Renwick - 1822 - 476 pages
...they must be all in the same plane. POISSON, §18. 40. If three forces applied to the same point are represented in magnitude and direction by the three sides of a triangle, they are in equilibrio round it. The converse of this is also true ; therefore, if three forces be...
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The Literary and Scientific Repository, and Critical Review, Volume 4

1822 - 520 pages
...angle contained by the directions of the other two. 40. If three forces applied to the same point are represented in magnitude and direction by the three sides of a triangle, they are in equilibrio round it. 39. When three forces are in equilibrio round a point, they must be...
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A Treatise of Mechanics, Theoretical, Practical, and Descriptive, Volume 1

Olinthus Gregory - 1826 - 604 pages
...material point be kept in equilibrio by the simultaneous action of three forces, those forces will be represented in magnitude and direction by the three sides of a triangle respectively parallel to the directions of the forces. For, when a system of forces sustains a point...
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First Principles of Mechanics: With Historical and Practical Illustrations

William Whewell - 1832 - 572 pages
...forces represented by WR, RS are equivalent to the force represented by WS. CoE. 2. Any three forces represented in magnitude and direction by the three sides of a triangle, taken in order, as WR, RS, SW, will keep a point at rest. Let a boat B, fig. 1, be kept at rest, being drawn by three...
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The Cambridge course of elementary natural philosophy, being the ...

John Charles Snowball - 1838 - 114 pages
...and AC are the sides. Wherefore, " If the adjacent sides, &c." a. ED 29- PROP. ix. If three forces represented in magnitude and direction by the three sides of a triangle [when taken in order], act on a point, they will keep it at rest. r J l It, •> j 'Jlf! OLet the sides...
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Elementary Mechanics ... Part I [- II].

Harvey Goodwin (Bishop of Carlisle.) - 1851 - 414 pages
...actual velocity of the particle both in magnitude and direction. 15. Also if we suppose three velocities represented in magnitude and direction by the three sides of a triangle taken in order, AC, CB, BA, (not AB) to be simultaneously impressed upon a particle at rest, then the particle will...
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The Belfast Queen's College Calendar

Queen's University of Belfast - 1852 - 306 pages
...express the proportion of their densities ? 2. Prove that three forces are in equilibrio when they can be represented in magnitude and direction by the three sides of a triangle taken in order. 3. What are the two essential requisites of a good balance ? By what adjustments are these secured...
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Examination papers used at the examinations for direct commissions [&c.].

War office - 1861 - 714 pages
...and of the farthest 2° 45', find the height of the hill. 4. If three forces, acting on a point, are represented in magnitude and direction by the three sides of a triangle, taken in order, they will keep the point at rest. angle which it makes with the directions of the forces are 20° and...
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The Elements of Mechanical Physics

John Charles Buckmaster - 1864 - 202 pages
...cone topples over, supposing it to be prevented from sliding. (12.) SEHIES II. 13. If three forces represented in magnitude and direction by the three sides of a triangle taken in order, act upon a point, they will keep it at rest. Assuming the law of the parallelogram of forces, prove...
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The Cambridge Course of Elementary Natural Philosophy: Being the ...

Thomas Lund - 1864 - 188 pages
...each other, what is the numerical measure of the Resultant ? (7) In Prop. ix. how can three forces, represented in magnitude and direction by the three sides of a triangle, act on a point ? Does direction always mean the line of action ? (8) Is it possible for three forces,...
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