Motion of the tip of second hand of the clock is an example of:
Correct answer: A. Uniform circular motion
- A. Uniform circular motion
- B. Projectile motion
- C. Motion in a plane with uniform velocity
- D. Motion in a plane with constant acceleration
Explanation
The second hand moves at constant angular speed around the clock face, tracing a circular path with uniform angular velocity; hence the tip undergoes uniform circular motion.
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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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