A 4.0-kilogram object is accelerated at 3.0 meters
per second2 north by an unbalanced force. The
same unbalanced force acting on a 2.0-kilogram
object will accelerate this object toward the north at
(1) 12 m/s2 (3) 3.0 m/s2
(2) 6.0 m/s2 (4) 1.5 m/s2