| Augustin Privat-Deschanel - 1885 - 1156 páginas
...algebraic sum of the moments of P and Q. When Q is equal to P, they compose what is called a couple, and **the algebraic sum of their moments about any point in their plane** Ls constant, being always equal to P . AB, which is therefore called the moment of the couple. A couple... | |
| Dalhousie University - 1887
...uniform, thin triangular plate. 9. Shew that the algebraic sum of the moments of two parallel forces **about any point in their plane is equal to the moment of their resultant about the same point.** 10. Describe the common Balance ; and show that the mass of a body may be determined by means of it.... | |
| James Gordon MacGregor - 1887 - 512 páginas
...velocities of a moving point can be represented by the sides of a plane polygon, taken the same way round, **the algebraic sum of their moments about any point in their plane is** zero. (4) Show that, if the algebraic sums of the moments of the component velocities of a moving point... | |
| James Gordon MacGregor - 1887 - 512 páginas
...velocities of a moving point can be represented by the sides of a plane polygon, taken the same way round, **the algebraic sum of their moments about any point in their plane is** zero. (4) Show that, if the algebraic sums of the moments of the component velocities of a moving point... | |
| John Lovell Robinson - 1888 - 348 páginas
...in the line of action of the force. 186. THEOREM. — If two forces act on a body, the Algebraical **Sum of their Moments about any point in their plane is equal to the Moment of their Resultant about** that point. Case i. — When the Forces act at a point. Let AP and AQ be the directions of two forces... | |
| John Greaves - 1888 - 274 páginas
...36. Prop. The algebraical sum of the moments of a number of coplanar forces, acting on a particle, **about any point in their plane is equal to the moment of their resultant about the same point.** Let A be the position of the particle, 0 the given point. The algebraical sum of the moments of the... | |
| John Bascombe Lock - 1888 - 248 páginas
...71. PROP. The sum of the moments of any number of forces acting at a point in a plane about a given **point in their plane is equal to the moment of their resultant about the same point.** For the sum of the moments of any two of the forces about the point is equal to the moment of their... | |
| Charles V. Burton - 1890 - 302 páginas
...may now establish the following theorem : 128. If any number of coplanar forces act on a rigid body, **the (algebraic) sum of their moments about any point...the moment of their resultant about the same point.** Let CA, CB represent two given forces, P and Q (fig. 45), ' in line of action and magnitude, and let... | |
| Edward Salisbury Dana - 1881 - 291 páginas
...area of the triangle ABC. 155. The algebraic sum of the moments of two or more forces with respect to **any point in their plane is equal to the moment of their resultant.** Let AB, AD (Figs. 88, 89, 90) represent two forces, P and Q ; AC, the diagonal of the parallelogram... | |
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