## Elements of Natural Philosophy, Part 1 |

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Page 5

Similar considerations enable us to determine the

other systems of pulleys and cords as long as all the free parts of the cords are

parallel . Of course , if a pulley be fixed , the motion of a point of one end of the

cord ...

Similar considerations enable us to determine the

**relative**motions of all parts ofother systems of pulleys and cords as long as all the free parts of the cords are

parallel . Of course , if a pulley be fixed , the motion of a point of one end of the

cord ...

Page 17

All motion that we are , or can be , acquainted with , is

calculate from astronomical data for any instant the direction in which , and the

velocity with which , we are moving on account of the earth's diurnal rotation .

All motion that we are , or can be , acquainted with , is

**Relative**merely . We cancalculate from astronomical data for any instant the direction in which , and the

velocity with which , we are moving on account of the earth's diurnal rotation .

Page 18

The

imagining impressed on both a southward velocity of fifty miles an hour ; the

effect of this being to bring the first to rest , and to give the second a southward

velocity of ...

The

**relative**velocity of the second with regard to the first is to be found byimagining impressed on both a southward velocity of fifty miles an hour ; the

effect of this being to bring the first to rest , and to give the second a southward

velocity of ...

Page 19

The

geometrical resultants of the various components combined according to

preceding rules . 68. The following practical methods of effecting such a

combination in the ...

The

**relative**position , velocity , and acceleration are in such a case thegeometrical resultants of the various components combined according to

preceding rules . 68. The following practical methods of effecting such a

combination in the ...

Page 21

... which this diagonal makes with the two sides of the parallelogram . Let P and P

be two points executing simple harmonic motions of one period , B and in one

line B'BCAA ' . Let Q and ( be the uniformly moving points in the

... which this diagonal makes with the two sides of the parallelogram . Let P and P

be two points executing simple harmonic motions of one period , B and in one

line B'BCAA ' . Let Q and ( be the uniformly moving points in the

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acceleration according acting action amount angle angular applied attraction axes axis body called centre centre of inertia circle component condition consider constant corresponding couple course curvature curve denote density described determined direction displacement distance divided effect elastic elements energy equal equations equilibrium evidently experience expression figure fixed fluid force friction give given gravity harmonic Hence important increase infinitely small instant interval kinetic length less mass matter mean measured method motion moving natural normal observation opposite parallel particle passing path perpendicular plane portion position potential practical pressure principle problem produce projection proportional quantity radius reference relative remain respectively rest resultant right angles rigid rotation round sides simple solid space spherical square straight strain stress suppose surface theory turned uniform unit velocity weight whole wire