An Electron with a Speed of 2

question 73

Multiple Choice

An electron with a speed of 2.0 x 10⁶ m/s moves into a uniform electric field of 500 N/C that is parallel to the electron's motion.How long does it take to bring the electron to rest? (m_e = 9.11 x 10^-31 kg,e = 1.6 x 10^-19 C)

• A)2.3 x 10^-8 s
• B)3.5 x10^-8 s
• C)1.2 x 10^-7 s
• D)2.3 x 10^-6 s

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