[net.physics] Derivatives of position

KFL%MIT-MC@sri-unix.UUCP (01/28/84)

From:  Keith F. Lynch <KFL @ MIT-MC>

  The way I have always heard it was:

				Position	0th derivative
Rate of change of Position:	Velocity	1st derivative
Rate of change of Velocity:	Acceleration	2nd derivative
Rate of change of Acceleration:	Jerk		3rd derivative
Rate of change of Jerk:		Thump		4th derivative
Rate of change of Thump:	?		5th derivative

  Does anyone know what the 5th, etc, derivatives of position are
called?
								...Keith

gwyn%brl-vld@sri-unix.UUCP (01/30/84)

From:      Doug Gwyn (VLD/VMB) <gwyn@brl-vld>

The fifth and higher time-derivatives of position are called "noise".

KATZ%USC-ISIF@sri-unix.UUCP (02/01/84)

From:  Alan R. Katz <KATZ@USC-ISIF>

This is all wrong, it really should be:

Rate of change of Position:    Velocity
Rate of change of Velocity:    Acceleration
Rate of change of Acceleration:Jerk

but, the 5th derivative is called inauguration (change of the Jerk)!!


			Alan

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kjm@ut-ngp.UUCP (Ken Montgomery) (02/04/84)

[][]

> Does anyone know what the 5th, etc, derivatives of position are?

What do the 5th, etc, derivatives of position mean?!

rpw3@fortune.UUCP (02/05/84)

#R:sri-arpa:-1610100:fortune:8600010:000:403
fortune!rpw3    Feb  5 01:58:00 1984

The third derivative of position with respect to time is also
called "jolt" (as well as "jerk"), at least in my college physics
class. 

(I also remember an old sf-novel that spoke of "joltmeters
swinging over" at rocket liftoff...)

Rob Warnock

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