A 1.0-kg object is moving with a constant velocity 2.0 m/s toward the north. There are two forces acting on the object. One of the forces is 3.0 N north. What is the second force that acts on the object?
A) 1.0 N north.
B) 3.0 N north.
C) 3.0 N south.
D) 2.0 N north.
E) 0.
C
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