You are caught in a radar trap and hope to show that the speed measured by the radar gun is in error because of the uncertainty principle .
If you assume that the uncertainty in your position is large,Say about 10 m,And that the car has a mass of 2150 kg,What is the uncertainty in the velocity?

Question

Quizplus · Accepted Answer

The uncertainty principle states that the product of the uncertainty in position and the uncertainty in momentum cannot be less than a certain value. In this case, the uncertainty in position is given as 10 m, and the mass of the car is 2150 kg. The uncertainty in momentum is therefore:$$\Delta p = \Delta x m = 10 m * 2150 kg = 21500 kg m/s$$The uncertainty in velocity is then:$$\Delta v = \Delta p / m = 21500 kg m/s / 2150 kg = 1 * 10^{-38} m/s$$

You Are Caught in a Radar Trap and Hope to Show