Uncertainty of measurements

  • Thread starter Diana Moceiparisi
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In summary, uncertainty of measurements refers to the potential error or doubt associated with a measurement, and is calculated using statistical methods. It is important in understanding the reliability of data and can be reduced by using more precise instruments and minimizing human error. However, it can never be completely eliminated due to inherent limitations in the measurement process.
  • #1
Diana Moceiparisi
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1
a) A locomotive (train) starts from rest at a locomotive yard and accelerates at a rate of 1.80 m s-2 for 12.0 s. It then runs at constant speed for 50.0 s and slows down at a rate of 3.50 m s-2 until it stops at the next station. Determine the total distance covered by the train.
 
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  • #2
Diana Moceiparisi said:
a) A locomotive (train) starts from rest at a locomotive yard and accelerates at a rate of 1.80 m s-2 for 12.0 s. It then runs at constant speed for 50.0 s and slows down at a rate of 3.50 m s-2 until it stops at the next station. Determine the total distance covered by the train.
Welcome to PF!

This section is for introduction only. Please post your question in the introductory physics homework forum.
https://www.physicsforums.com/forums/homework-and-coursework-questions.152/

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  • #3
sorry man & yes I've done that. can you solve the problem i posted? :)
 
  • #4
Diana Moceiparisi said:
sorry man & yes I've done that. can you solve the problem i posted? :)
Sorry, not the one you posted in the HH forum:-p!
Diana Moceiparisi said:
a) A locomotive (train) starts from rest at a locomotive yard and accelerates at a rate of 1.80 m s-2 for 12.0 s. It then runs at constant speed for 50.0 s and slows down at a rate of 3.50 m s-2 until it stops at the next station. Determine the total distance covered by the train.
I can solve this one.
 
  • #5
ah okay then haha. That'd be nice :)
 
  • #6
Welcome to PF!

As cnh1995 already said, we require that all homework questions be posted in the homework forums.

Thread locked.
 

1. What is uncertainty of measurements?

Uncertainty of measurements refers to the level of doubt or potential error associated with a particular measurement. It takes into account various factors such as the precision and accuracy of the measuring instrument, human error, and environmental conditions.

2. How is uncertainty of measurements calculated?

Uncertainty of measurements is typically calculated using statistical methods, such as standard deviation or confidence intervals. These calculations take into account the variability of the measurements and provide a range of values within which the true value is likely to fall.

3. Why is uncertainty of measurements important?

Uncertainty of measurements is important because it allows us to understand the reliability and validity of our data. It also helps us to make informed decisions and draw accurate conclusions based on the measurements.

4. How can uncertainty of measurements be reduced?

There are several ways to reduce uncertainty of measurements, such as using more precise and accurate measuring instruments, minimizing human error through proper training and procedures, and controlling environmental conditions during the measurement process.

5. Can uncertainty of measurements ever be completely eliminated?

No, uncertainty of measurements can never be completely eliminated. There will always be some degree of uncertainty associated with any measurement due to inherent limitations and imperfections in the measurement process.

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