Multiple Choice
According to Newton's first law, if the net force on an object is zero (), which statement must be true about its motion?
6. Intro to Forces (Dynamics)
Newton's First & Second Laws
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Newton's First & Second Laws: What happens when a net (unbalanced) force acts on an object?
A
The object’s mass increases, preventing any change in motion.
B
The object moves with constant velocity because only balanced forces can change motion.
C
The object accelerates in the direction of the net force (its velocity changes).
D
The object remains at rest because unbalanced forces cancel out.
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