An Electron with a Speed of 3 × 10⁶ M/s

question 44

Multiple Choice

An electron with a speed of 3 × 10⁶ m/s moves into a uniform electric field of 600 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) 2.8 × 10−⁸ s
• B) 0.9 × 10−⁸ s
• C) 11.4 × 10−⁷ s
• D) 2.6 × 10−⁶ s
• E) ​4.3 × 10−⁷ s

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