Charge in an Electric Field: a Small Sphere with a Mass

Multiple Choice

Charge in an electric field: A small sphere with a mass of 441 g is moving upward along the vertical +y-axis when it encounters an electric field of 5.00 N/C . If, due to this field, the sphere suddenly acquires a horizontal acceleration of 13.0 m/s2 , what is the charge that it carries?

A) 1.15 C
B) -1.15 C
C) 1150 C
D) -1150 C