An elementary treatise on MechanicsMacmillan, 1863 - 374 σελίδες |
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Αποτελέσματα 1 - 5 από τα 84.
Σελίδα 9
... hence we infer that P will balance Q at whatever point of the rod Q be applied : in other words the effect of Q is the same at whatever point of the rod B , C , ... it be applied , the direction remaining the same . These considerations ...
... hence we infer that P will balance Q at whatever point of the rod Q be applied : in other words the effect of Q is the same at whatever point of the rod B , C , ... it be applied , the direction remaining the same . These considerations ...
Σελίδα 12
... Hence when a system of forces ( as P , Q , R , ... ) is in equilibrium , R one of them ( as P ) may be regarded as counterbalancing the combined action of all the rest , Q , R , S. It appears then that the remaining forces ( Q , R , S ) ...
... Hence when a system of forces ( as P , Q , R , ... ) is in equilibrium , R one of them ( as P ) may be regarded as counterbalancing the combined action of all the rest , Q , R , S. It appears then that the remaining forces ( Q , R , S ) ...
Σελίδα 17
... Hence proposition ( i ) is proved . 19. ( ii . ) To prove that the resultant acts in direction of the diagonal , if the forces are incommensurable . F B Let AB , AC represent two such forces . Complete the parallelogram BC , and if AD ...
... Hence proposition ( i ) is proved . 19. ( ii . ) To prove that the resultant acts in direction of the diagonal , if the forces are incommensurable . F B Let AB , AC represent two such forces . Complete the parallelogram BC , and if AD ...
Σελίδα 18
... Hence FD is a parallelogram , and .. AE = FB = AD ; i . e . the resultant of AB , AC is represented in magnitude as well as in direction by AD the diagonal of the parallelogram . 21. The theorem which we have just proved is of so much ...
... Hence FD is a parallelogram , and .. AE = FB = AD ; i . e . the resultant of AB , AC is represented in magnitude as well as in direction by AD the diagonal of the parallelogram . 21. The theorem which we have just proved is of so much ...
Σελίδα 21
... Hence the converse of the theorem of this Article is not true without some additional condition , such as that each force lies without the angle ( < 7 ) formed by the other two . The student however will have no difficulty in proving ...
... Hence the converse of the theorem of this Article is not true without some additional condition , such as that each force lies without the angle ( < 7 ) formed by the other two . The student however will have no difficulty in proving ...
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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...