Question

A mass m = 20 g has a charge q = 3.0 mC. It moves with
a velocity of 20 ms and enters a region of electric
field of 80 NC - 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 (c) 44 ms (d) 40 ms?​

Answer 1

Answer:

option (b) is the answer I think