Two negative charges, each with a charge of -7.7 nC, are at fixed locations as shown below. A proton is launched from the midpoint of the line joining the charges in a direction perpendicular to the line joining the charges. Find the minimum initial velocity of the proton that will allow it to escape to infinity. Ignore gravitational or any other influences on the proton. (k=1/480 = 8.99 × 109 Nm2/C2, e = 1.60 × 10-19 C, mproton = 1.67 × 10-27 kg). [Hint: Conservation of energy might be helpful and you can assume that the proton is at rest at infinity]

Two negative charges, each with a charge of -7.7 nC, are at fixed locations as shown below. A proton is launched from the midpoint of the line joining the charges in a direction perpendicular to the line joining the charges. Find the minimum initial velocity of the proton that will allow it to escape to infinity. Ignore gravitational or any other influences on the proton. (k=1/480 = 8.99 × 109 Nm2/C2, e = 1.60 × 10-19 C, mproton = 1.67 × 10-27 kg). [Hint: Conservation of energy might be helpful and you can assume that the proton is at rest at infinity]