Calculating standard deviation for average force

AI Thread Summary
The discussion focuses on calculating the standard deviation for average force using error propagation equations. The initial approach involved using the multiplication error propagation formula, but the result was incorrect. A reference formula for error propagation in division was suggested, indicating that the deviation for average force can be determined by the deviations of impulse and time. A calculator link was provided to assist with calculations involving force, impulse, and time. The conversation emphasizes the importance of correctly applying error propagation methods to obtain accurate results.
jb007
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Homework Statement


6.png

I am stuck on the last problem.

Homework Equations


Just the error propagation equations

The Attempt at a Solution


I initially used the multiplication error propagation formula. So the average force would be the impulse divided by the time, the same thing as the impulse times 1/time. Favg = I⋅1/t. So the deviation for force would be the absolute value of I times 1/(deviation of time)? But this is wrong, as I get 131, a number that wouldn't make sense. How do I find the deviation for Favg? I feel like I might have to use some of my other data...
 
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