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A mass m=20 g has a charge q= 3.0 mC. It...

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 s in this region is

A

`80 ms^(-1)`

B

`56 ms^(-1)`

C

`44 ms^(-1)`

D

`40 ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
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