If an Electron Is Accelerated from Rest Through a Potential

Multiple Choice

If an electron is accelerated from rest through a potential difference of 1 200 V,find its approximate velocity at the end of this process.(e = 1.6 × 10−¹⁹ C;m_e = 9.1 × 10−³¹ kg)

A) 2.5E+7 m/s
B) 2.1E+8 m/s
C) 2.1E+7 m/s
D) 4.2E+7 m/s
E) ​1.8E+8 m/s