# Uncertainty particle function evolves over time

1. Apr 10, 2008

### faen

1. The problem statement, all variables and given/known data

The position of a proton is measured with an accuracy of $$\Delta$$x = 10^-11 m
Calculate $$\Delta$$x one second later. Assume v << c.

2. Relevant equations

Heisenbergs uncertainty principle perhaps.

3. The attempt at a solution

I assume this requires knowledge about how the particle function evolves over time, but because the function is unknown in this case, its random how it evolves...

Last edited by a moderator: Mar 7, 2013
2. Apr 10, 2008

### faen

Thought a bit more about it. If i calculate the uncertainty in momentum by using heisenbergs uncertainty principle. Then multiply it by t and divide by m, to calculate $$\Delta$$x a second after. Does this sound right?

3. Apr 11, 2008