 | Sidney H. Wells - Mechanics - 1898 - 274 pages
...experiment may be regarded as a verification. Triangle of Forces. If three forces acting at a point can be represented in magnitude and direction by the sides of a triangle taken in order, they are in equilibrium; and conversely, If three forces acting at a point are in equilibrium, and... | |
 | Sir Richard Gregory, Arthur Thomas Simmons - Physics - 1899 - 216 pages
...You have therefore proved the triangle of forces, viz.: When three forces acting at a point can be represented in magnitude and direction by the sides of a triangle taken in order, they are in equilibrium. 88. Friction. (a) Fix a small staple, such as is used to fasten wire netting,... | |
 | Augustus Jay Du Bois - Engineering - 1902 - 682 pages
...must act in their plane and be equal and opposite to the third. (3) If three concurring forces are represented in magnitude and direction by the sides of a triangle taken the same way round, the resultant is zero and the forces are in equilibrium. (4) Hence, if three concurring... | |
 | Andrew Jamieson - Mechanics, Applied - 1903 - 748 pages
...taken in the reverse direction. Hence, if there be simultaneously impressed on a point three velocities represented in magnitude and direction by the sides of a triangle taken in order, then the point will remain at rest.* Polygon of Velocities. — If several component velocities be... | |
 | Eldred John Brooksmith - 1904 - 378 pages
...answered.] Gravitational acceleration = 32 foot-second units. 1. Three forces acting at a point can be represented in magnitude and direction by the sides of a triangle taken in order. Prove, from first principles, that the algebraic sum of the moments of the three forces about any point... | |
 | William Henry Atherton - Girders - 1905 - 294 pages
...have now 3 forces meeting at a point and keeping the lever in equilibrium. Hence these forces can be represented in magnitude and direction by the sides of a triangle taken in order. Draw this triangle by setting off W equal to 1 ton and drawing parallels to the other forces. This... | |
 | Alfred William Porter - Mechanics - 1905 - 440 pages
...hour. Give the direction as well as the magnitude of the force. 5. Three forces represented completely by the sides of a triangle taken in order act on a rigid body. Will they keep it in equilibrium ? If they were moved so as to act on a particle, would... | |
 | Sidney Luxton Loney - Mechanics - 1907 - 332 pages
...is 5 feet; find the resolved parts of its weight along and perpendicular to the plane. a point, be represented in magnitude and direction by the sides of a triangle, taken in order, that is, taken the same way round, they will be in equilibrium. Let the forces P, Q, and R acting at... | |
 | Frank Eugene Kidder - Architecture - 1908 - 1784 pages
...squares of the other two forces. Tlio Triangle of Forces. — III. // three forces actbig on a point be represented in magnitude and direction by the sides of a triangle taken in order, they will keep the point in equilibrium. Thus let P, Q, and R (Fig. ."5) represent three forces acting... | |
 | Royal Military Academy, Woolwich - Mathematics - 1909 - 456 pages
...answered.] Gravitational acceleration = 32 foot-second units. 1. Three forces acting at a point can be represented in magnitude and direction by the sides of a triangle taken in order. Prove, from first principles, that the algebraic sum of the moments of the three forces about any point... | |
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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. 
