An elementary treatise on MechanicsMacmillan, 1863 - 374 σελίδες |
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Αποτελέσματα 1 - 5 από τα 30.
Σελίδα 56
... cylinder rolls on a plane , or a cylindrical axis turns within a hollow socket ( when there is simply a line in contact and not a finite area ) , the amount of friction is much less than would be given by the above laws ( i ) and ( ii ) ...
... cylinder rolls on a plane , or a cylindrical axis turns within a hollow socket ( when there is simply a line in contact and not a finite area ) , the amount of friction is much less than would be given by the above laws ( i ) and ( ii ) ...
Σελίδα 57
... cylinder of wood rolls upon wood so that there 1 is a single line of contact only , μ = 12 ; -when the surface in contact is a physical point the statical friction is inconsider- able . 57. To find the coefficient of friction between ...
... cylinder of wood rolls upon wood so that there 1 is a single line of contact only , μ = 12 ; -when the surface in contact is a physical point the statical friction is inconsider- able . 57. To find the coefficient of friction between ...
Σελίδα 132
... cylinder , which may be imagined to be generated thus : H Let AG be a rectangle whose base AB is exactly equal to the circumference of the cylinder ; make the rectangles BD , CF , EH ... equal in every respect , and draw the straight ...
... cylinder , which may be imagined to be generated thus : H Let AG be a rectangle whose base AB is exactly equal to the circumference of the cylinder ; make the rectangles BD , CF , EH ... equal in every respect , and draw the straight ...
Σελίδα 133
... cylinder at right angles to its axis . By turning the lever a weight is raised , or a pressure produced , at the end of the screw , which pressure acts in direction of the axis of the screw . When the solid screw is small , it is ...
... cylinder at right angles to its axis . By turning the lever a weight is raised , or a pressure produced , at the end of the screw , which pressure acts in direction of the axis of the screw . When the solid screw is small , it is ...
Σελίδα 134
... cylinder perpen- dicular to its axis produce the same effect to turn the cylinder round its axis as the power P acting at the arm CA. Hence the moments of p , p ' , p " ... about the axis must together be equal to the moment of P about ...
... cylinder perpen- dicular to its axis produce the same effect to turn the cylinder round its axis as the power P acting at the arm CA. Hence the moments of p , p ' , p " ... about the axis must together be equal to the moment of P about ...
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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...