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 Βιβλία Βιβλία 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. The Elements of Analytical Mechanics - Σελίδα 67
των De Volson Wood - 1882 - 249 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## Woolwich Mathematical Papers for Admission Into the Royal Military Academy ...

Eldred John Brooksmith - 1904
...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... ## An Introduction to the Design of Beams, Girders, and Columns in Machines and ...

William Henry Atherton - 1905 - 236 σελίδες
...We 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.... ## Principle of Elementary Mechanics

De Volson Wood - 1903 - 208 σελίδες
...2FPcos(F,P). This equation is of the same form as those in Articles 14 and 56. 148. Triangle of Pressures. — If three concurrent forces are in equilibrium they may be represented in mag<nitfude and direction of action 'by the three sides of a triangle taken in their order. In Fig.... ## Elements of Mechanics Including Kinematics, Kinetics and Statics: With ...

Thomas Wallace Wright - 1906 - 382 σελίδες
...is a closed polygon. Hence If any number of forces in the same plane acting on a par' tide keep it in equilibrium, they may be represented in magnitude and direction by the sides of a closed polygon taken the same way round. This is the graphical condition of equilibrium of forces acting... ## Mechanics and Hydrostatics for Beginners

Sidney Luxton Loney - 1905 - 290 σελίδες
...and perpendicular to the plane. M "p 30. Triangle of Forces. Jf three forces, acting at ?\ 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 £... ## Henley's Encyclopaedia of Practical Engineering and Allied Trades ...

1907
...particular case of the second. The triangle of forces states that if three forces acting on a particle are in equilibrium they may be represented in magnitude and direction by the three sides of a triangle taken in order, and conversely, if three forces acting on a particle can... ## Henley's Encyclopædia of Practical Engineering and Allied Trades: A ...

Joseph Gregory Horner - 1907
...particular case of the second. The triangle of forces states that if three forces acting on a particle are in equilibrium they may be represented in magnitude and direction by the three sides of a triangle taken in order, and conversely, if three forces acting on a particle can... ## Cassell's Engineer's Handbook: Comprising Facts and Formulæ, Principles and ...

Henry Adams - 1907 - 576 σελίδες
...TRIANGLE OF FORCES. 62. POLYGON OF FORCES. When more than three forces in one plane acting upon a point are in equilibrium they may be represented in magnitude and direction by lines forming a closed polygon. More fully defined in next paragraph. 63. FORCE POLYGON. When forces... ## The Architect's and Builder's Pocket-book: A Handbook for Architects ...

Frank Eugene Kidder - 1908 - 1661 σελίδες
...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... ## An Elementary Text-book of Physics, Τόμος 1

Robert Wallace Stewart - 1910
...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,...