 | Robert Wallace Stewart - 1910 - 434 σελίδες
...converse of this theorem states that if three forces acting at a point are in equilibrium they can be represented in magnitude and direction by the sides of a triangle taken in order. Since all triangles, whose sides are parallel to three given directions, must be similar triangles,... | |
 | University of Calcutta - 1911 - 760 σελίδες
...one group). The questions are all of equal value. GROUP A. 1. If three forces, arling at a point, be represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium. ABCD is a quadrilateral. Forces acting on a particle are represented in... | |
 | Sidney Luxton Loney - 1912 - 418 σελίδες
...direction OA is, by Art. 19, Fcos a. 21. Triangle of Forces. If three forces, acting at a point, be represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium. Let the forces P, Q, and R acting at the point 0 .be represented in magnitude... | |
 | Melville Baker Wells - 1913 - 282 σελίδες
...negative. Equilibrium.—If three forces in one plane act at one point and are in equilibrium they may be represented in magnitude and direction by the sides of a triangle taken in order; and conversely, if the sides of a triangle represent in magnitude and direction three forces meeting... | |
 | Trinity College (Dublin, Ireland) - 1913 - 752 σελίδες
...acting at a point at an angle sin"1 f with one another. 2. If three forces acting on a particle be represented in magnitude and direction by the sides of a triangle taken in order, they are in equilibrium. 3. Two men carry a weight W between them by two ropes fixed to the weight... | |
 | Arthur Fage - 1915 - 154 σελίδες
...value of the propeller thrust. FIG. 28. H1 introduces a new air force R1, so that H1, R1, and W are represented in magnitude and direction by the sides of a triangle taken in order (see fig. 28). It follows, then, that if the elevator position be fixed, variations in the magnitude... | |
 | Arthur Fage - 1915 - 184 σελίδες
...value of the propeller thrust FIG. 28. H! introduces a new air force R1; so that Hj, R1( and W are represented in magnitude and direction by the sides of a triangle taken in order (see fig. 28). It follows, then, that if the elevator position be fixed, variations in the magnitude... | |
 | Frederick Arthur Ambrose Talbot - 1915 - 158 σελίδες
...new value of the propeller thrust Fio. 28. Hj introduces a new air force R1( so that H^ Rj, and W are represented in magnitude and direction by the sides of a triangle taken in order (see fig. 28). It follows, then, that if the elevator position be fixed, variations in the magnitude... | |
 | John Paul Kottcamp - 1915 - 202 σελίδες
...plane. . (b) The lines of action of the forces pass through a common point. (c) The three forces may be represented in magnitude and direction by the sides of a triangle taken in order. (d) // the three forces are parallel the resultant force equals zero, and the algebraic sum of the... | |
 | Arthur Fage - 1917 - 204 σελίδες
...value of the propeller thrust FIG. 28. Hj introduces a new air force Rj, so that Hj, R j , and W are represented in magnitude and direction by the sides of a triangle taken in order (see fig. 28). It follows, then, that if the elevator position be fixed, variations in the magnitude... | |
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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. 
