Which of the following statements is perfectly true regarding uniform circular motion?
A. Both speed and velocity are constant.
B. Velocity is constant but speed changes.
C. Both speed and velocity change continuously.
D. Speed is constant but velocity changes continuously.
Answer: Option D
Solution (By JKSSB Mock Tests)
In uniform circular motion, the magnitude of velocity (speed) remains constant. However, the direction of motion is continuously changing tangentially at every point on the circular path. Since velocity is a vector quantity (requiring both magnitude and direction), a change in direction means the velocity is changing continuously, resulting in an accelerated motion.
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