An elementary treatise on MechanicsMacmillan, 1863 - 374 σελίδες |
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Σελίδα v
... Friction . • Explanation of the action of friction , 52 , 53 ; laws of friction , 54 ; rolling friction , & c . 55 ; practical method of finding the coefficient of fric- tion , 57 . 54 CHAPTER IV . Of forces , the directions of which.
... Friction . • Explanation of the action of friction , 52 , 53 ; laws of friction , 54 ; rolling friction , & c . 55 ; practical method of finding the coefficient of fric- tion , 57 . 54 CHAPTER IV . Of forces , the directions of which.
Σελίδα 40
... friction which the roughness of the surfaces can give rise to is brought into exercise , then , as will be seen in Chap . III . ( to which the student is referred ) , F = μP , -μ being some quantity found by experiment ; and the ...
... friction which the roughness of the surfaces can give rise to is brought into exercise , then , as will be seen in Chap . III . ( to which the student is referred ) , F = μP , -μ being some quantity found by experiment ; and the ...
Σελίδα 43
... friction ( see chapter on Friction ) and is the circular measure of the angle included between the normals to the curve at the points where the string quits the curve . Art . ( 66 ) . ( iii ) Elastic Strings . If an elastic string whose ...
... friction ( see chapter on Friction ) and is the circular measure of the angle included between the normals to the curve at the points where the string quits the curve . Art . ( 66 ) . ( iii ) Elastic Strings . If an elastic string whose ...
Σελίδα 53
... AFBD 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.
... AFBD 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.
Σελίδα 54
... friction . When a body is just on the point of sliding , it is said to be in a state bordering on motion , and the greatest amount of friction which the surfaces can exert is then in operation . In other cases no more friction is called ...
... friction . When a body is just on the point of sliding , it is said to be in a state bordering on motion , and the greatest amount of friction which the surfaces can exert is then in operation . In other cases no more friction is called ...
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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
Δημοφιλή αποσπάσματα
Σελίδα 15 - If two forces acting at a point be represented in magnitude and direction by the...