- #1

theIBnerd

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## Homework Statement

I have a problem while writing the uncertainty of datas in my lab report (portfolio).

So, here is my question:

While multiplying some data with different uncertainties, I do multiply their uncertainties too, right?

Then, if the multiplication of uncertainities has less digits after comma than that of the actual multiplication af data; should I round up some digits of the actual multiplication of data?

## Homework Equations

To make it more clear, here is an example:

Work= Force x distance

W(J)= m(kg) ±0.1 kg x g(m/sec2) ±0.1 m/sec2 x h(m) ±0.01 m

W= 47.9 kg x 9.79 m/sec2 x 3.975 m

W= 1864.040475 kg x m2/sec2= 1864.040475 Joule ±0.0001 Joule

## The Attempt at a Solution

Should it be like:

W= 1864.0405 Joule ±0.0001 Joule ?