In uniform circular motion, the factor that remains constant is:
Correct answer: D. Speed
- A. Linear velocity
- B. Centripetal force
- C. Acceleration
- D. Speed
Explanation
The correct answer is option D: Speed. In uniform circular motion, the factor that remains constant is the object's speed, which is the magnitude of its velocity. Linear velocity, centripetal force, and acceleration are not constant in uniform circular motion as they change with direction and other factors.
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Rotational motion relates angular displacement, angular velocity and angular acceleration to linear displacement, tangential velocity and tangential acceleration through the radius. Questions use radians, v equals r omega and tangential acceleration, while distinguishing tangential velocity from centripetal acceleration and angular quantities from their linear counterparts.
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