Two Forces Are the Only Forces Acting on a 3

Multiple Choice

Two forces are the only forces acting on a 3.0-kg object which moves with an acceleration of 3.0 m/s² in the positive y direction. If one of the forces acts in the positive x direction and has a magnitude of 8.0 N, what is the magnitude of the other force?

A) 12 N
B) 14 N
C) 16 N
D) 18 N
E) 22 N