How Can I Remove Reaction Time When Calculating the Speed of Sound?

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Homework Help Overview

The discussion revolves around an experiment to calculate the speed of sound, specifically focusing on how to account for the reaction time of the observer when timing the sound produced by clapping wooden blocks. The original poster seeks methods to eliminate their reaction time from the measurements to improve accuracy.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants suggest various methods to estimate or eliminate reaction time, including estimating the reaction time and considering how it might cancel out in the timing process. There are discussions about the potential inaccuracies introduced by human reaction time and suggestions for alternative timing methods.

Discussion Status

The discussion is ongoing, with participants exploring different approaches to mitigate reaction time effects. Some have provided suggestions for timing methods that involve a second observer, indicating a productive direction in the conversation.

Contextual Notes

There are concerns about the accuracy of timing due to the short duration of the events being measured, and the potential impact of external conditions, such as temperature, on the results. The original poster mentions a specific threshold for reaction time that could significantly affect their findings.

stevenback7
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Today i did a simple expirement to calculate the speed of sound by placing someone 180 m away from me and telling the clap two wooden blocks. I timed the time it took between me seeing the blocks hit each other and when i heard the sound of the two blocks. Now in order for this to be as acurate as possible i want to remove the time it took me to react. So does anyone know anyway i can remove the time it takes me to react from the expirement ?
 
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Just estimate your reaction time and remove it from the time you got
 
The reaction time should cancel because you take x seconds to start the watch after you see the blocks then x seconds when you hear the clap.
 
yes kurdt it should cancel out but since I'm dealing with a time less then a second but if i looked at the blocks i would be more likely to start the stopwatch before the blocks hit and would be less likely to stop it on time. So in order to get over that problem i got someone to stand beside me and count to 3 while i looked at the ground and timed as accurately as possible.

i will try to estimate it ponjavic but if it goes above like 0.2 of a second then it would mean my results would show that the outside temp. was like 50 degress celsius.
 
You could get someone to stand next to you and clap when they see the wooden blocks hit, with you looking away. Then, you can measure the time between the 2 claps.
 

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