Question

Collision of charged particles}} A proton moves in vacuum and enters a region where there's another proton at rest. The protons interact and the angle between their velocities is measured when they are far away from each other. What is the most likely value for this angle in degrees ?

Answer 1

90

Answer 2

This problem has been posted on Brilliant as a current problem in this weeks' Geometry problem set.

I am unable to post an image or internet link to it.

Please refrain from telling the OP the answer.

I ask that moderators take this posting down.

- Calvin Lin
Brilliant Challenge Master