## delta V. in. Heisenberg questions

$\Delta p \Delta x\geq \frac{h}{4\pi }$

SarahCoufal_1k
Posts: 102
Joined: Thu Jul 25, 2019 12:17 am

### delta V. in. Heisenberg questions

In 1.B.27,the question says: a bowling ball of 8 .00kg is being rolled down an alley lane at 5.00 +/- 5.0 m/s. what is the minimum uncertainty in its position?

For uncertainty in velocity (delta v), would it be 10 or 5? I thought it would be 10. because the range is from 0-10, however the solutions book seems to be using 5.

Posts: 55
Joined: Sat Aug 17, 2019 12:15 am

### Re: delta V. in. Heisenberg questions

The uncertainty in velocity would be 10 in this case because it is vfinal-vinitial. I'm assuming there's a typo in the solutions manual?

SajaZidan_1K
Posts: 56
Joined: Wed Sep 18, 2019 12:15 am

### Re: delta V. in. Heisenberg questions

This is a typo: On the website you can find the typo and the correction: "1B.27
Solution manual states Δv = 5.0 m.s-1
Velocity was given as 5.00 ± 5.0 m.s-1
Therefore Δv = 10.0 m.s-1
With the correction, the final answer is: Δx = 6.7 x 10-37 m"

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