## Question about HW1.45 and how to determine the incertainty of velocity [ENDORSED]

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

Jiaruo Wang 1K
Posts: 7
Joined: Wed Sep 21, 2016 3:00 pm

### Question about HW1.45 and how to determine the incertainty of velocity

1.45 A bowling ball of mass 8.00 kg is rolled down a bowling alley lane at 5.00+/-5.0m/s. What's the minimum uncertainty in its positon?

The student solution manual take 5m/s as the delta v. I feel confused because based on what i learned from the video, the delta v in this question should be doubled as 10m/s. I asked the TA, but he said use 5m/s too.

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Edward_Lee_3C
Posts: 36
Joined: Wed Sep 21, 2016 2:58 pm

### Re: Question about HW1.45 and how to determine the incertainty of velocity  [ENDORSED]

If you check the Solution Manuel Errors on Dr. Lavelle's website 1.45 is on there and you're completely right!