A particle (q = 4.0 mC, m = 50 g) has a velocity of 25 m/s in the positive x direction when it first enters a region where the electric field is uniform (60 N/C in the positive y direction). What is the speed of the particle 5.0 s after it enters this region?
A. 49 m/s
B. 35 m/s
C. 32 m/s
D. 44 m/s
E. 24 m/s
Answer: B
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