Help with Example Question

[rita_debbaneh2G]

A proton is accelerated in a cyclotron to a very high speed that is known to within 3.0 x 10² km/s. What is the minimum uncertainty in its position?

this is an example question in the 1B section but because the work isn't displayed, I'm not sure where I'm going wrong with it. The answer is .11 pm. Can someone explain how to get there?

[Anna_Mohling_1D]

Hi! For this question you'll use the equation ! So first, I make sure everything is in the correct units (mass in kg, velocity in m/s, position in m). So first convert the given velocity from km/s to s. Then, you know the mass of a proton is 1.693 x 10 ^ -27 kg (given on constants sheet). From here, I plug in my known values to solve for the uncertainty in position or delta x. Then at the end, just multiply your answer by 10^12 to convert meters to pm.