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 Examples

Εξώφυλλο
Macmillan and Company, 1874 - 398 σελίδες
 

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Δημοφιλή αποσπάσματα

Σελίδα 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.
Σελίδα 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.
Σελίδα 15 - If two forces acting at a point be represented in magnitude and direction by the...
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.

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