## Elements of Natural Philosophy, Part 1 |

### From inside the book

Page 2

If the motion be that of a material particle , however , there can be no abrupt

change of

we shall afterwards see ) such would imply the action of an infinite force . It is

useful to ...

If the motion be that of a material particle , however , there can be no abrupt

change of

**velocity**, nor of direction unless where the**velocity**is zero , since ( aswe shall afterwards see ) such would imply the action of an infinite force . It is

useful to ...

Page 6

The rate of motion of a point , or its rate of change of position , is called its

or less : and it may be uniform , i.e. the same at every instant ; or it may be

variable .

The rate of motion of a point , or its rate of change of position , is called its

**Velocity**. It is greater or less as the space passed over in a given time is greateror less : and it may be uniform , i.e. the same at every instant ; or it may be

variable .

Page 7

8 driving - power to be made , we can evidently obtain an approximation to the

time , that during that time the actual variation of speed may be small enough to

be ...

8 driving - power to be made , we can evidently obtain an approximation to the

**velocity**at a particular instant , by considering ( § 25 ) the motion for so short atime , that during that time the actual variation of speed may be small enough to

be ...

Page 8

Thus a point moving with

the horizon , has a vertical

may be resolved into components in any three rectangular directions , each ...

Thus a point moving with

**velocity**V up an Inclined Plane , making an angle a withthe horizon , has a vertical

**velocity**V sin a and a horizontal**velocity**Vcosa . Or itmay be resolved into components in any three rectangular directions , each ...

Page 9

is then measured by the actual increase of

as the unit of acceleration that which adds a unit of

is then measured by the actual increase of

**velocity**per unit of time . If we chooseas the unit of acceleration that which adds a unit of

**velocity**per unit of time to the**velocity**of a point , an acceleration measured by a will add a units of**velocity**in ...### What people are saying - Write a review

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### Common terms and phrases

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