An elementary treatise on MechanicsMacmillan, 1863 - 374 σελίδες |
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Αποτελέσματα 1 - 5 από τα 25.
Σελίδα 6
... unit and then express in numbers the relation which the other forces bear to this unit . For example , if F represent the unit of force ( the weight of a given body for instance ) , PF will represent a force the intensity of which is P ...
... unit and then express in numbers the relation which the other forces bear to this unit . For example , if F represent the unit of force ( the weight of a given body for instance ) , PF will represent a force the intensity of which is P ...
Σελίδα 7
... unit of length , then the force P will be represented geometrically by the line AB ; for this line is drawn in the ... units of length as the force contains units of force . The student must be careful to observe the order of the letters ...
... unit of length , then the force P will be represented geometrically by the line AB ; for this line is drawn in the ... units of length as the force contains units of force . The student must be careful to observe the order of the letters ...
Σελίδα 8
... units of length ; and the point of application A will be assigned by assigning the position of A with respect to the fixed lines Ox , Oy in the same plane with AB . 11. This mode of representing forces by lines is of great utility , as ...
... units of length ; and the point of application A will be assigned by assigning the position of A with respect to the fixed lines Ox , Oy in the same plane with AB . 11. This mode of representing forces by lines is of great utility , as ...
Σελίδα 29
... in terms of their respective units ; and the moment consequently is the pro- duct of two numerical quantities . Thus if AB represent a force P , and O be any given point , - Op perpendicular to AB , and if m , n MOMENT OF FORCES . 29.
... in terms of their respective units ; and the moment consequently is the pro- duct of two numerical quantities . Thus if AB represent a force P , and O be any given point , - Op perpendicular to AB , and if m , n MOMENT OF FORCES . 29.
Σελίδα 30
... unit of moment ( i.e. the product of a unit of force into a unit of distance ) being represented geometrically by a unit of area . Further , the force P would tend to twist the body on which it acts in one direction or the reverse ...
... unit of moment ( i.e. the product of a unit of force into a unit of distance ) being represented geometrically by a unit of area . Further , the force P would tend to twist the body on which it acts in one direction or the reverse ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
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...