An elementary treatise on MechanicsMacmillan, 1863 - 374 páginas |
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Página 86
... projected on any plane , the projection of the centre of gravity of the system on that plane will be the centre of gravity of a system of particles in the plane , equal to the former and coincident with the points of projection of the ...
... projected on any plane , the projection of the centre of gravity of the system on that plane will be the centre of gravity of a system of particles in the plane , equal to the former and coincident with the points of projection of the ...
Página 103
... projections on x'Ax of the lines AP , AQ ... i.e. of the forces P , Q ... But since these forces are at equi- librium the algebraic sum of their resolved parts in any assigned direction must be zero by Art . ( 39 ) . Hence since the ...
... projections on x'Ax of the lines AP , AQ ... i.e. of the forces P , Q ... But since these forces are at equi- librium the algebraic sum of their resolved parts in any assigned direction must be zero by Art . ( 39 ) . Hence since the ...
Página 130
... projection of OP on the inclined plane , AB the sec- tion of the inclined plane made by the vertical plane through O per- pendicular to the inclined plane , POD = e , BOD = ẞ , BAC = α . Ο B Now friction always acts in the direction ...
... projection of OP on the inclined plane , AB the sec- tion of the inclined plane made by the vertical plane through O per- pendicular to the inclined plane , POD = e , BOD = ẞ , BAC = α . Ο B Now friction always acts in the direction ...
Página 163
... projection of P on the line Oy , or the position of Preferred to the line Oy . Note . The above mode of representing ... projections on two fixed lines Ox , Oy , 11-2 REPRESENTATION OF VELOCITY . 163.
... projection of P on the line Oy , or the position of Preferred to the line Oy . Note . The above mode of representing ... projections on two fixed lines Ox , Oy , 11-2 REPRESENTATION OF VELOCITY . 163.
Página 164
... projections of P , Q , R on Ox , and we readily see by simple geometry that the ratio of pq pr is the same as that ... projection on a given line Ox will also move uniformly , -not with the same velocity as the particle , but with a ...
... projections of P , Q , R on Ox , and we readily see by simple geometry that the ratio of pq pr is the same as that ... projection on a given line Ox will also move uniformly , -not with the same velocity as the particle , but with a ...
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Términos y frases comunes
accelerating force angular points applied axis balance ball bisects body or system centre of gravity circle coefficient of friction conditions of equilibrium cos² curve cycloid cylinder determine diagonal distance elastic equal particles equation equi find the centre fixed point forces acting fulcrum funicular geometrical given heavy particles Hence horizontal plane impact inclined plane latus rectum length lever librium magnitude and direction mass middle point moving parabola parallel parallelogram parallelogram of forces parallelopiped Pcos perpendicular polygon position of equilibrium pressure pully pyramid radius represented resolved rest resultant right angles rough shew sides similar triangles sin² sliding smooth sphere straight line string passes student suppose surface system of forces system of particles tangent tension theorem three forces tion triangle uniform vertex vertical plane virtual velocity W's virtual weight
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Página 15 - If two forces acting at a point be represented in magnitude and direction by the...