| Woolwich roy. military acad - 1861
...1. Assuming the parallelogram of forces, prove that the algebraic sum of the moments of two forces **about any point in their plane is equal to the moment of their resultant about the same point.** If the algebraic sum of the moments of a system of forces in one plane be separately zero about two... | |
| John Francis Twisden - 1863 - 319 páginas
...QED Proposition 10. The algebraical sum of the moments of two parallel pressures with reference to **any point in their plane is equal to the moment of their resultant** with reference to that point. Let P and Q be the two pressures, and let them act Fra. 52 towards the... | |
| John Francis Twisden - 1863
...QED Proposition 10. The algebraical sum of the moments of two parallel pressures with reference to **any point in their plane is equal to the moment of their resultant** with reference to that point. Let P and Q be the two pressures, and let them act Fo M towards the same... | |
| Samuel Newth - 1864 - 364 páginas
...P^i + P2 p, + <fec. — Qi ft — Qa ft - <tc. 46. If any number of parallel forces act in the same **plane, the algebraic sum of their moments about any point in their** resultant will be equal to zero. Let Pu P2, &c. be forcea lying on one side of the resultant, and pu... | |
| John Kerr - 1866 - 295 páginas
..., R r = 2 ' Pp. Cor. 2. When a set of forces acting on a point in one plane are in equilibrium, the **sum of their moments about any point in their plane is equal to** 0. For Pt~0, .-.Rr = 0, .-. 2-Pp = 0. Cor. 3. When a set of forces act on a point in one plane, the... | |
| 1867
...geometrical construction. Prove that the algebraic sum of the moments of two forces which are not parallel, **about any point in their plane, is equal to the moment of their resultant.** 3. Find the centre of gravity of a triangular lamina (or triangle) of uniform thickness and density.... | |
| James L. McDowell - 1867 - 102 páginas
...the point A lies on the line of action of the resultant, since the sum of the moments of the forces **about any point in their plane is equal to the moment of** the resultant about the same point. Similarly, the points B and C lie on the line of action of the... | |
| James Hamblin SMITH - 1868
...hands of a watch revolve, or the contrary. 6. 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** that point. CASE I. When the forces act in the same direction. Let A, B be two points in the lines... | |
| John Francis Twisden - 1868 - 320 páginas
...E, D. Proposition 10. The algebraical sum of the moments of two parallel pressures with reference to **any point in their plane is equal to the moment of their resultant** ivith reference to that point. Let p and Q be the two pressures, and let them act towards the same... | |
| Dublin city, univ - 1868
...Mil. TOWNSEND. 1. Prove that, when two forces intersect, the sum or difference of their moments round **any point in their plane is equal to the moment of their resultant** round the same point in the plane. 2. Prove that, when two forces are parallel, the sum or difference... | |
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