(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find the acceleration of gravity. Using the trendline equation of Force v. hanging mass, find the RMS uncertainty for the force.

Trend line equation: y = 9.8968x - 0.0342 R² = 0.9493

Data Values:

Hanging mass is the first number. Force is the second number.

0.40 3.839928

0.39 3.690708

0.37 3.720552

0.35 3.720552

0.30 2.765544

0.20 1.949808

2. Relevant equations

F=ma

RMS = Sqrt((X1)^{2}+(X2)^{2}+(X3)^{2}+........+(XN)^{2}/N)

3. The attempt at a solution

I got 9.8968 as the accleration of gravity.

I got 3.35414 as the RMS of the Force values.

I also got 6.566915632 as the RMS of the Force-Force (trendline)

I just don't understand how to calculate the RMS uncertainty of force. I don't know what numbers should i use.

Thanks

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: RMS uncertainty using a Trend Line

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