Question is : What is the percent uncertainty in the volume of a spherical beach ball whose radius is r = 3.86 ± 0.08 m ?(adsbygoogle = window.adsbygoogle || []).push({});

The answer is 6 % , but Im not getting that, Im pretty sure im on the right path, I found the volume of the ball using V = (4 x 3.14 x r^3) / 3

Btw, Im pretty sure you need to take into account the ± .08m for 3.86 when you find radius. I got 3.94 and 3.78 Radius's. But I still dont see how I can get 6 %. Heres the percent uncertainty formula. (uncertainty)/(value) x 100

Maybe Im on the wrong track, please help me through this problem, I am new to Physics and a little rusty on my math, so any pointers are greatly appreciated.

Thanks

-Anamoly

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# Homework Help: Percent Uncertainty of a spherical beach ball

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