How close does the proton get to the line of charge?

How close does the proton get to the line of charge? An infinitely long line of charge has linear charge density 4.50×10−12 Cm. A proton (mass 1.67×10−27 , charge 1.60×10−19 C) is 16.5cm from the line and moving directly toward the line at 1000m/s . A) Calculate the proton’s initial kinetic energy. B) How close … Read more