1.45


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Hyein Cha 2I
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Joined: Fri Sep 29, 2017 7:05 am
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1.45

Postby Hyein Cha 2I » Thu Nov 02, 2017 9:06 pm

I am confused on how to find delta V for heisenberg uncertainty equation.

For example, for question 1.45, it says a bowling ball of mass 8 kg is rolled down a bowling alley lane at 5+/- 5 m/s (5 plus minus 5 meter/sec). What is the minimum uncertainty in its position?

In the solutions manuel, it says that delta V is 10 m/s. Is it because delta V = biggest V (10m/s) - smallest V (0m/s) ?

SitharaMenon2B
Posts: 50
Joined: Thu Jul 27, 2017 3:01 am

Re: 1.45

Postby SitharaMenon2B » Thu Nov 02, 2017 9:14 pm

It's because the + or - 5 is the uncertainty, and since it can be 5m/s in each direction, the total uncertainty is 2x5=10m/s.

mayapartha_1D
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

Re: 1.45

Postby mayapartha_1D » Thu Nov 02, 2017 10:13 pm

Yes exactly!! You don't have to take into account the value of the velocity itself because it is only asking for the uncertainty.

Hope this helped.


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