The Electric Field in a Cathode Ray Tube Is Supposed

The electric field in a cathode ray tube is supposed to accelerate electrons from 0 to 4.8 × 10⁷ m/s in a distance of 5.00 cm.What electric field is required? (m_e = 9.11 × 10−³¹ kg and e = 1.60 × 10−¹⁹ C)
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A) 27,300 N/C
B) 209,900 N/C
C) 131,200 N/C
D) 262,400 N/C
E) 14,400 N/C