Electrostatics

Question: A mass $m = 20\,g$h as a charge $q = 3.0\,mC$. It moves with a velocity of $20\,m/s$ and enters a region of electric field of $80\,N/C$ in the same direction as the velocity of the mass. The velocity of the mass after 3 seconds in this region is



1) $80\,m/s$
2) $56\,m/s$
3) $44\,m/s$
4) $40\,m/s$
Solution: Explanation: Explanation
electric-field-potential

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