An Elementary Treatise on Mechanics: For the Use of the Junior Classes at the University and the Higher Classes in School, with a Collection of ExamplesMacmillan and Company, 1874 - 398 pàgines |
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An Elementary Treatise on Mechanics, for the Use of the Junior Classes at ... Stephen Parkinson Previsualització no disponible - 2010 |
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Frases i termes més freqüents
accelerating force angular points applied axis ball bisects body or system centre of gravity circle coefficient of friction conditions of equilibrium cone cos² curve cycloid cylinder diagonal distance elastic equal particles equation equi find the centre fixed point forces acting fulcrum geometrical given heavy particle Hence horizontal plane impact inclined plane latus rectum law of motion length lever magnitude and direction mass middle point moving parabola parallel parallelogram parallelogram of forces parallelopiped perpendicular point of application polygon position of equilibrium pressure prove pully pyramid radius represented resolved rest resultant right angles rough shew sides similar triangles sin² sliding smooth sphere straight line string passes suppose surface system of forces t₁ t₂ tangent tension three forces tion triangle uniform unit vertex vertical plane virtual velocity W's virtual weight
Passatges populars
Pàgina 184 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Pàgina 185 - Change of motion is proportional to the impressed force and takes place in the direction of the straight line in which the force acts.
Pàgina 15 - If two forces acting at a point be represented in magnitude and direction by the...
Pàgina 184 - Corpus omne perseverare in statu suo quiescendi vel movendi uniformiter in directum, nisi quatenus a viribus impressis cogitur statum ilium mutare. Lex I (in edition of i726). Corpus omne perseverare in statu suo quiescendi vel movendi uniformiter in directum, nisi quatenus illud a viribus impressis cogitur statum suum mutare.
Pàgina 116 - The substance to be weighed is placed in one scale-pan, and weights of known magnitude are placed in the other till the beam remains in equilibrium in a perfectly horizontal position, in which case the weight of the substance is indicated by the weights which balance it.
Pàgina 341 - A person travelling eastward at the rate of 4 miles per hour, finds that the wind seems to blow directly from the north; on doubling his speed it appears to come from the north-east; find the direction of the wind and its velocity.
Pàgina 322 - A heavy equilateral triangle, hung up on a smooth peg by a string the ends of which are attached to two of its angular points, rests with one of its sides vertical ; shew that the length of the string is double the altitude of the triangle.