Problem: A proton with kinetic energy K=0.5eV is moving toward the right and parallel to the x-axis. The proton is initially a long distance to the left of the origin and at y=2.05 nm above the x-axis.
Part A: If there is fixed proton at the origin, how close does the moving proton get to the fixed proton?
Please explain how you got the numbers and calculations. Thanks.