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" If three forces, represented in magnitude and direction by the sides of a triangle, act on a point, they will keep it at rest. "
The Mechanical Euclid: Containing the Elements of Mechanics and Hydrostatics ... - Σελίδα 46
των William Whewell - 1837 - 182 σελίδες
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The Cambridge course of elementary natural philosophy, being the ...

John Charles Snowball - 1838 - 81 σελίδες
...magnitude, the diagonal will represent the resultant force in direction and magnitude. 29. Prop. 9. If three forces, represented in magnitude and direction by the sides of a triangle, act on a point, they will keep it at rest. CHAPTER IV. Mechanical Powers. ARTS. 31. Definition of Wheel...

A manual for mechanics' institutions

Society for the diffusion of useful knowledge - 1839
...and resolution of forces. 19. If three forces, represented in direction and magnitude by the three sides of a triangle, taken in order, act on a point, they will keep it at rest. In the preceding proposition (Art. 18) there are three forces, P, Q, R, represented by the...

The examinations for the degree of bachelor of arts, Jan., 1847

Cambridge univ, exam. papers - 1847 - 80 σελίδες
...resultant of two forces measured by 3lbs. and 4lbs. respectively, acting in' opposite directions ? 4. If three forces, represented in magnitude and direction by the sides of a triangle, act on a point, they will keep it at rest. 5. Define a pully, and find the ratio of P to Win that system...

An Elementary Treatise on Mechanics: Intended for the Use of Colleges and ...

William Whewell - 1847 - 191 σελίδες
...59. PROP. If any number of forces, represented in magnitude and direction by the sides of a polygon taken in order, act on a point, they will keep it in equilibrium.. Let forces AB, BC, CD, DE, EA act upon a point A ; they will keep it in equilibrium. By Art. 55, the forces...

Register

University of Cambridge - 1849
...and magnitude, the diagonal will represent the resultant force in direction and magnitude. Prop. 9. If three forces, represented in magnitude and direction by the sides of a triangle, act on a point, they will keep it at rest. And also of such Questions and Applications as arise directly...

Five Years in an English University, Τόμος 2

Charles Astor Bristed - 1852
...distances along a straight lever ; find the position of the fulcrum when there is equilibrium. 21. If three forces, represented in magnitude and direction by the sides of a triangle, act on a point, they will keep it at rest. when the power is to the weight as the radius of the axle...

General Report on Public Instruction in the Bengal Presidency

1863
...1-409 = -16702. log. 3 == -47712 log. 1-470 = -16732. 6. Define Force and explain how it is measured. If three forces represented in magnitude and direction by the sides of a triangle, act on a point, they will keep it at rest, "J 7. A weight of 25 Ibs. hangs at rest attached to the...

Cambridge examination papers: a suppl. to the University calendar, 1856-59

Cambridge univ, exam. papers - 1856
...respectively, and the pressure on the fulcrum be 25 pounds, what are the magnitudes of the forces ? 2. If three forces represented in magnitude and direction...taken in order, act on a point, they will keep it at rest. Two forces whose magnitudes are 12 and 5 pounds respectively, act at right angles to each...

Cambridge examination papers: a suppl. to the University calendar, 1856-59

Cambridge univ, exam. papers - 1856
...they will balance each other in a given position of the lever, not horizontal. Prove the converse. 3. If three forces, represented in magnitude and direction by the sides of a triangle, act on a point, they will keep it at rest. 4. In a system in which the same string passes round any...

A Collection of Problems in Illustration of the Principles of Elementary ...

William Walton - 1858 - 247 σελίδες
...greater than 6 + 3, and therefore the three forces cannot be represented by the sides of a triangle. (3) Three forces, represented in magnitude and direction by the sides of a triangle, act on a point : if the greatest of the forces be to the least as & to 3, and the triangle be right-angled,...




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