By the first law, zero net external force means acceleration is:
ARising up
BFalling
CZero too
DLarge one
Answer & Solution
Correct answer: C. Zero too
1. The first law connects net force to acceleration.
2. With no net external force, nothing changes the motion.
3. So the acceleration is zero.
_Source: syllabus Physics Part I, Chapter 5, Laws of Motion._
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