Solving a problem in physics section 72 point 62 electr

62. A proton flies into a flat, horizontally positioned capacitor parallel to its plates at a speed of 2 ∙ 105 m / s. The field strength inside the capacitor is 3 kV / m, the length of its plates is 12 cm. Find how many times the proton velocity when leaving the capacitor will be greater than its initial velocity. Round off the answer to hundredths.