allerySpeed differs from velocity in that speed does not carry:
ADirection
BDuration
CDistance
DDivision
Answer & Solution
Correct answer: A. Direction
1. Velocity is a vector and speed is a scalar.
2. Taking a magnitude discards one piece of information.
3. Instantaneous speed is the magnitude of velocity, so it keeps size but not direction.
4. So the answer is direction.
_Source: syllabus Physics Part I, Ch 2 'Motion in a Straight Line'_
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