What is meant by rate of change of accelration? how to measure it

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Discussion Overview

The discussion revolves around the concept of the rate of change of acceleration, commonly referred to as "jerk." Participants explore its definition, measurement techniques, and applications, particularly in dynamic conditions such as machinery operation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant expresses confusion about the term "rate of change of acceleration" and seeks clarification on how to measure it in dynamic conditions.
  • Another participant suggests that jerk can be calculated by measuring the applied force on an object, noting that acceleration is force divided by mass, and the rate of change of acceleration is the change in acceleration divided by the time taken for that change.
  • There is a request for a clear definition of jerk, with emphasis on wanting more information about the term itself.
  • A participant mentions that jerk can be measured using an accelerometer, prompting further inquiry into how this instrument works and whether there are specific instruments designed to measure jerk directly.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the measurement of jerk, with some proposing methods while others seek further clarification and information. The discussion remains unresolved regarding the best approach to measure jerk.

Contextual Notes

Participants express uncertainty about the practical application of measuring jerk and the specific instruments available for this purpose. There are also assumptions regarding the neglect of factors like air resistance and friction in the calculations.

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my doubt is what is meant by rate of change of acceleration? how can i measure it in dyanmic condition? if it realated to machene tools, the movement of the slides acceleration has to be changed continuosly for different application . how we can measure it
 
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The most direct way to calculate rate of change of acceleration (also known as "jerk")
is if you can measure the applied force on an object. The acceleration of the object will be the force divided by the mass (not weight, but mass) of the object.

The change in acceleration will be the change in force divided by the mass.

The rate of change of acceleration will be the change in acceleration divided by the time it took to make that change.

Edit: This process assumes that air resistance and friction are not a significant factor.
 
clear definition about jerk. want more infromation related to term called jerk

Chi Meson said:
The most direct way to calculate rate of change of acceleration (also known as "jerk")
is if you can measure the applied force on an object. The acceleration of the object will be the force divided by the mass (not weight, but mass) of the object.

The change in acceleration will be the change in force divided by the mass.

The rate of change of acceleration will be the change in acceleration divided by the time it took to make that change.

Edit: This process assumes that air resistance and friction are not a significant factor.
dear sir,

i want to know more about jerk only. please explai a bit


one of my friend mentioned in the front page itself that it can be measeured by usring accelorometer. how it exactly. works. i am not worried about plotting the results .but my thinking is how we can measure rate of cahnge of acceleration. just like speed is measeure by using speedometer. current by ammeter like that is there is any instrument to meausre jerk

thanking u
 
Last edited:
dear sir,

i want to know more about jerk only. please explai a bit


one of my friend mentioned in the front page itself that it can be measeured by usring accelorometer. how it exactly. works. i am not worried about plotting the results .but my thinking is how we can measure rate of cahnge of acceleration. just like speed is measeure by using speedometer. current by ammeter like that is there is any instrument to meausre jerk
 

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