 | Luke Herbert - Industrial arts - 1824 - 394 pages
...the cause thereof} and in the same direction in which that force is impressed. 3. Action is always equal and contrary to re-action; or the actions of two bodies upon each other are equal, and in contrary directions. 29. The first principle is termed the vis inert'uf, of matter,... | |
 | Henry Kater, Dionysius Lardner - Mechanics - 1830 - 602 pages
...in a straight line, unless it be compelled to change that state by forces impressed upon it." II. " Every change of motion must be proportional to the...that straight line in which the force is impressed." III. " Action must always be equal and contrary to reaction ; or the actions of two bodies upon each... | |
 | Henry Kater, Dionysius Lardner - Mechanics - 1830 - 412 pages
...force, and must be in the direction of that straight line in which the force is impressed." III. " Action must always be equal and contrary to reaction...actions of two bodies upon each other must be equal, and directed towards contrary sides." / When inertia and force are defined, the first law becomes an identical... | |
 | 1831 - 358 pages
...in a straight line, unless it be compelled to change that state by forces impressed upon it." II. " Every change of motion must be proportional to the...that straight line in which the force is impressed." III. " Action must always be equal, and contrary to reaction ; or the actions of two bodies upon each... | |
 | William Mullinger Higgins - Physics - 1838 - 532 pages
...2. Every change of motion must he proportional to the force which is impressed upon the moving body, and must be in the direction of that straight line in which the force is impressed. 3. Action must always be equal and contrary-to reactioa ; or the actions of two bodies upon each other... | |
 | Chambers W. and R., ltd - 1842 - 744 pages
...motion in a straight line, unless it be compelled to change that state by forces impressed upon it. 2d, Every change of motion must be proportional to the...that straight line in which the force is impressed. 3d, Action must always be equal and contrary to reaction ; or the actions of two bodies upon each other... | |
 | William Chambers, Robert Chambers - Encyclopedias and dictionaries - 1842 - 938 pages
...be in the direction of that straight line in which the force is impressed. 3d, Action must always bo equal and contrary to reaction ; or the actions of...must be equal, and their directions must be opposite. These propositions we shall treat separately. In the first of the series there are three points requiring... | |
 | William Benjamin Carpenter - Astronomy - 1843 - 604 pages
...operation, therefore, two bodies at least are necessary. It is expressed in the following terms : — Action must always be equal and contrary to reaction...actions of two bodies upon each other must be equal, and directed against contrary sides. 176. The simplest case of the action of one body upon another, is... | |
 | William Benjamin Carpenter - 1843 - 336 pages
...to the action of new forces upon bodies already in motion, or in the act of being set in motion. " Every change of motion must be proportional to the impressed force, and its direction will depend upon that of the straight line in which the force is impressed." Thus, if... | |
 | William Mullinger Higgins - Electricity - 1844 - 536 pages
...moving body, and must be in the direction of that straight line in which the force is impressed. 3. Action must always be equal and contrary to reaction...actions of two bodies upon each other must be equal, and directed towards contrary sides. These principles being remembered, the reader, however unacquainted... | |
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Every body must persevere in its state of rest, or of uniform motion in a straight line, unless it be compelled to change that state by forces impressed upon it." II. " Every change of motion must be proportional to the impressed force, and must be in... 
