A small object with a 5.0-μC charge is accelerating horizontally on a friction-free surface at 0.0050 m/s2 due only to an electric field.If the object has a mass of 2.0 g,what is the magnitude of the electric field?
A)2.0 N/C
B)4.0 N/C
C)0.0020 N/C
D)0.0040 N/C
E)1.0 N/C

Question

Quizplus · Accepted Answer

The force on the object is given by F = ma = (0.002 kg)(0.0050 m/s²) = 0.00001 N. The electric field E is given by E = F/q = 0.00001 N / 5.0 x 10^-6 C = 2.0 N/C.

A Small Object with a 5