## Elements of Natural Philosophy, Part 1 |

### From inside the book

Results 6-10 of 38

Page 11

This is true also if the total acceleration and its direction at every

simply its rectangular components , be given , provided the velocity and its

direction , as well as the position of the point , at any one

these are in ...

This is true also if the total acceleration and its direction at every

**instant**, orsimply its rectangular components , be given , provided the velocity and its

direction , as well as the position of the point , at any one

**instant**be given . Butthese are in ...

Page 12

Evidently there is no acceleration perpendicular to the plane containing the fixed

point and the line of motion of the moving point at any

velocity perpendicular to this plane at starting , there is therefore none ...

Evidently there is no acceleration perpendicular to the plane containing the fixed

point and the line of motion of the moving point at any

**instant**; and there being novelocity perpendicular to this plane at starting , there is therefore none ...

Page 14

For the product of this perpendicular and the velocity at any

the area described in one second about the fixed point , which has just been

shown to be a constant quantity . Other examples of these principles will be met

with ...

For the product of this perpendicular and the velocity at any

**instant**gives doublethe area described in one second about the fixed point , which has just been

shown to be a constant quantity . Other examples of these principles will be met

with ...

Page 15

If , for simplicity , we consider the motion to be confined to a plane passing

through the fixed point , the angle which the joining line makes with a fixed line in

the plane is continually altering , and its rate of alteration at any

the ...

If , for simplicity , we consider the motion to be confined to a plane passing

through the fixed point , the angle which the joining line makes with a fixed line in

the plane is continually altering , and its rate of alteration at any

**instant**is calledthe ...

Page 17

We can calculate from astronomical data for any

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

rotation . We may compound this with the ( equally calculable ) velocity of the

earth in ...

We can 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 . We may compound this with the ( equally calculable ) velocity of the

earth in ...

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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