## Uncertainty in Speed

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

Aiden Metzner 2C
Posts: 104
Joined: Wed Sep 18, 2019 12:21 am

### Uncertainty in Speed

How do we calculate the uncertainty in speed if the speed is 5+- 5 m/s? Is the uncertainty 5m/s or 10?

Goyama_2A
Posts: 107
Joined: Sat Aug 24, 2019 12:17 am

### Re: Uncertainty in Speed

The uncertainty in velocity would be 10 m/s. The uncertainty is given by the total range of what it could be. So, in this case, since the velocity could be anywhere ranging from 0 m/s to 10 m/s, your uncertainty in velocity would be 10 m/s.

JinwooLee_1F
Posts: 47
Joined: Sat Aug 17, 2019 12:15 am

### Re: Uncertainty in Speed

When it is +-n, the uncertainty is 2n. Even for 5 +-2, the uncertainty would be 4.