Question

The 500-gram mass carries a charge of -7x10-8 C. If the coefficient of friction between the...

The 500-gram mass carries a charge of -7x10-8 C. If the coefficient of friction between the mass and the surface is 0.2, and an electric field is horizontal and directed to the right, which is being treated as the positive x-direction. What is the acceleration of the mass?

E = 3 x 10^7 N/C

A. 2.24 m/s2

B. -2.24 m/s2

C. 3.78 m/s2

D. -3.78 m/s2

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