The Evolution Of Physics by Elnstein Albert. & Infeld Leopold

Author:Elnstein,Albert. & Infeld,Leopold.
Language: eng
Format: mobi
Tags: NATURAL SCIENCES, General mechanics. Mechanics of solid and rigid bodies, Physics
Publisher: The Scientific Book Club And Company Limited.

but also velocities from one c.s. to another if we know the realtive velocities of the two c.s. The positions, or co-ordinates, and velocities are examples of quantities which are different in different c.s. bound together by certain, in this case very simple, transformation laws.

There exist quantities, however, which are the same in both c.s. and for which no transformation laws are needed. Take as an example not one, but two fixed points on the upper rod and consider the distance between them. This distance is the difference in the co-ordinates of the two points. To find the positions

of two points relative to different c.s., we have to use transformation laws. But in constructing the differences of two positions the contributions due to the

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