I'm so confused of the Heisenberg's Uncertainties...(adsbygoogle = window.adsbygoogle || []).push({});

Here's a question i have to solve, although it looks very easy but my understanding of Heisenberg's Uncertainties is still shallow.

Fuzzy a quantum mechanical duck lives in a world which h = 2 PI Js. Fuzzy has a mass of 2.0 kg and initially is known to be within a pond of 1m wide.

- The minimum uncertainty in his speed?

- Assuming the uncertainty in speed prevails for 5.0s, determine uncertainy in position after that time.

This is my attempt to solve the first one:

Of course I have to apply Heisenberg's Uncertainties here.

m x (uncertainties in speed) x (uncertainties in location) => h/4PI

the mass is 2.0kg, but the uncertainty in location, is it half of the width or it's the width??

I'm still not good in determining the uncertainties.

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# Homework Help: Heisenberg's Uncertainties, question

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