An elementary treatise on MechanicsMacmillan, 1863 - 374 páginas |
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Página vi
... horizontal , centre of gravity , 69 ; there is one and only one centre of gravity for any system , 70 ; centre of parallel forces , 70 , Cor . 3 ; centre of gravity of a right line , a parallelogram , a triangle , perimeter of a ...
... horizontal , centre of gravity , 69 ; there is one and only one centre of gravity for any system , 70 ; centre of parallel forces , 70 , Cor . 3 ; centre of gravity of a right line , a parallelogram , a triangle , perimeter of a ...
Página 54
... horizontal surface , on a table for example , and we wish to make it slide along the surface , we encounter a resistance to this motion ; there exists between the particles of the body and the table an adhesion which resists their ...
... horizontal surface , on a table for example , and we wish to make it slide along the surface , we encounter a resistance to this motion ; there exists between the particles of the body and the table an adhesion which resists their ...
Página 58
... horizontal , A no friction will be HR B R C called into action , but if it be gradually inclined more and more to the horizon till the body M is just on the point of sliding down AB , then the full amount of friction between the two ...
... horizontal , A no friction will be HR B R C called into action , but if it be gradually inclined more and more to the horizon till the body M is just on the point of sliding down AB , then the full amount of friction between the two ...
Página 71
... horizontal and vertical distance between A and B , we have from the geome- try of the figure the following equations ... horizontally is of the same magnitude , and if we put this = c , so that c = t , cos a1 = t2 cos a2 we obtain from ...
... horizontal and vertical distance between A and B , we have from the geome- try of the figure the following equations ... horizontally is of the same magnitude , and if we put this = c , so that c = t , cos a1 = t2 cos a2 we obtain from ...
Página 72
... horizontal and the tangents of the angles which the succes- sive elements of the string ( taken from C ) make with the horizon are in Arithmetic progression , tan positions of P vary as the number of the arc CP , i . e . tan poc s ...
... horizontal and the tangents of the angles which the succes- sive elements of the string ( taken from C ) make with the horizon are in Arithmetic progression , tan positions of P vary as the number of the arc CP , i . e . tan poc s ...
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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...