An elementary treatise on MechanicsMacmillan, 1863 - 374 páginas |
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Página 46
... heavy rod , which is suspended by two strings attached to its ends , the strings being of given length and attached to the same fixed point . If AB be the rod , G its middle point , AC , BC the two strings attached to a fixed point C ...
... heavy rod , which is suspended by two strings attached to its ends , the strings being of given length and attached to the same fixed point . If AB be the rod , G its middle point , AC , BC the two strings attached to a fixed point C ...
Página 48
... heavy particle ( weight W ) is attached to the middle point of a rod AB without weight , the ends of which rest against two inclined planes at right angles to one another : the vertical plane which passes through the rod being at right ...
... heavy particle ( weight W ) is attached to the middle point of a rod AB without weight , the ends of which rest against two inclined planes at right angles to one another : the vertical plane which passes through the rod being at right ...
Página 53
... is a parallelogram . Hence AD , AE being each parallel to BF are in the same straight line ; —which proves the parallelogram of forces for the direction of the resultant . CHAPTER III . OF FRICTION . 52. WHEN a heavy PROBLEMS . 53.
... is a parallelogram . Hence AD , AE being each parallel to BF are in the same straight line ; —which proves the parallelogram of forces for the direction of the resultant . CHAPTER III . OF FRICTION . 52. WHEN a heavy PROBLEMS . 53.
Página 54
Stephen Parkinson. CHAPTER III . OF FRICTION . 52. WHEN a heavy body rests on a plane 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 ...
Stephen Parkinson. CHAPTER III . OF FRICTION . 52. WHEN a heavy body rests on a plane 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 ...
Página 56
... amount of pressure . The fact that rolling friction is much less than sliding friction is taken advantage of in various contrivances for faci- litating the transport of heavy bodies ; thus for instance 56 OF FRICTION .
... amount of pressure . The fact that rolling friction is much less than sliding friction is taken advantage of in various contrivances for faci- litating the transport of heavy bodies ; thus for instance 56 OF FRICTION .
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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...