Physics-
General
Easy

Question

A particle of mass m and charge q is placed at rest in a uniform electric field E as shown and released. The kinetic energy it attains after moving a distance y is

  1. fraction numerator 1 over denominator 2 end fraction q E y    
  2. q E y    
  3. qE2y    
  4. fraction numerator 1 over denominator 2 end fraction m open parentheses q E y close parentheses    

The correct answer is: q E y

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