- #1

shyta

- 56

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I need to compute the theoretical value for centripetal force together with its uncertainty for my circular motion experiment.

That is, since my mass was measured to be 0.208536kg, standard deviation can be assumed to be 0. To compute the theoretical value for centripetal force, F, together with its uncertainty, I need the uncertainty in g.

i.e.

F=mg

dF/F = sqrt( (dm/m)^2 + (dg/g)^2 )

where dm is assumed to be 0

Correct me if I'm wrong. Anyone able to provide dg? I did a Google search and found something like g at equator to be 9.78 and 9.83 at the poles.

can i just assume dg to be 0.02 in this case?

thanks wise ones