An Electron with a Speed of 2

Multiple Choice

An electron with a speed of 2.0 × 10⁶ m/s moves into a uniform electric field of 325 N/C that is parallel to the electron's motion.How long does it take to bring the electron to rest? (me = 9.11 × 10−³¹ kg,e = 1.6 × 10−¹⁹ C)

A) 3.5 × 10−⁸ s
B) 2.3 × 10−⁶ s
C) 2.3 × 10−⁸ s
D) 1.2 × 10−⁷ s