Can we mix SR and uncertainty principle? for ex. from uncertainty principle we have [tex]\Delta x \Delta p \geq h/4\pi [/tex].(adsbygoogle = window.adsbygoogle || []).push({});

Books then write [tex]m \Delta x \Delta v \geq h/4\pi [/tex] with an assumption that m can be measured accurately.

However form SR we know that mass depends on velocity; with mass increasing with velocity. Now if we can't measure v exactly how can we measure m exactly?

please explain.

Thanks

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# Few questions on uncertainty principle

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