alleryUnderstanding the relative nature of motion introduces the concept of relative:
AVelocity
BVicinity
CVariance
DVibration
Answer & Solution
Correct answer: A. Velocity
1. Motion is always measured against some frame.
2. Comparing two moving frames needs its own quantity.
3. To understand the relative nature of motion, we introduce the concept of relative velocity.
4. So the answer is relative velocity.
_Source: syllabus Physics Part I, Ch 2 'Motion in a Straight Line'_
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