MCQOPTIONS
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| 1. |
A mass \[m=20\,g\] has 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 |
| A. | \[80\,m/s\] |
| B. | \[56\,m/s\] |
| C. | \[44\,m/s\] |
| D. | \[40\,m/s\] |
| Answer» C. \[44\,m/s\] | |