A proton (charge e = + 1.60 x 10-19 C, mass m =1.67 x 10-27 kilogram) accelerates from rest by crossing a potential difference V = 3.00 Volt
a). Determine the velocity v0 it acquires.
Assume this proton, having initial velocity v0 from part (a), moves from very far away directly towards a stationary heavy ion which is singly charged, i.e. having the same charge as the proton, +e.
b) Compute the distance rmin between the proton and the ion at the moment of closest approach.
c) Compute the velocity of a proton when it is at a distance r =2rmin from the ion.