question_answer

A charged particle of mass m and charge q is released from rest in a electric field of constant magnitude E. the KE of the particle after time t is:

A) \[\frac{E{{q}^{2}}m}{2{{t}^{2}}}\]                          

B) \[\frac{2{{E}^{2}}{{t}^{2}}}{qm}\]  

C) \[\frac{{{E}^{2}}{{q}^{2}}{{t}^{2}}}{2m}\]                      

D) \[\frac{Eqm}{2t}\]