Homework Help: Physics - Uncertainties

Posted by Anonymous on Wednesday, February 4, 2009 at 2:56pm.

I have to do a lab with uncertainties, I have worked out that the uncertainty of the weight of Newton weights is (ą0.48g)and the time uncertainty is (ą0.0005s)but how do you find the uncertainty of acceleration? (using (v^2-u^2)/ (2s) ) just theoretically how would you go about doing this? and the distance was measured by a normal ruler so I guess the uncertainty of distance would be something like 0.0005m?
thanks for helping!

Physics - Uncertainties - bobpursley, Wednesday, February 4, 2009 at 4:33pm
Good question. It is not something I can answer here, for lack of time. Examples are in the first link, and if you want to check your calcualtions, see any of the uncertainity calculators in this.
http://www.google.com/search?hl=en&client=firefox-a&rls=org.mozilla:en-US:official&hs=0bp&ei=LwmKSdk_hPoyzKWgzgc&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=uncertainty+in+calculations&spell=1

Few master understanding the importance of this subject, thanks for asking.

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