In uniform circular motion, which quantity stays constant?
AThe course
BThe vector
CThe height
DThe speed
Answer & Solution
Correct answer: D. The speed
1. The motion is called uniform for a reason.
2. The speed stays constant, though the velocity keeps changing direction.
3. So the correct answer is the speed.
_Source: NCERT Class 11 Physics Part I, Ch 4 'Motion in a Plane'_
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