An object with a 5.0 μC charge is accelerating at 0.0050 m/s2due to an electric field. If the object has a mass of 2.0 mg

electric-field
charge-acceleration

#1

An object with a 5.0 μC charge is accelerating at 0.0050 m/s2due to an electric field. If the object has a mass of 2.0 mg, what is the magnitude of the electric field?
A) 2.0 N/C
B) - 2.0 N/C
C) 0.0020 N/C
D) - 0.0020 N/C

Answer:

E=F/q
F=ma a=5x10^(-3) m/s^2 m=2x10^(-6) kg
F=1x10^(-8) kgm/s^2 = 10^(-8)N
q=5x10^(-6)C
E=2x10^(-3)N/C = 0.0020 N/C