Electrostatics Question 370
Question: A mass has a charge . It moves with a velocity of and enters a region of electric field of in the same direction as the velocity of the mass. The velocity of the mass after 3 seconds in this region is
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: B
Solution:
Hence v = u + at therefore v = 20 + 12x 3 = 56 m/s.