Which one of the following is most probably not a case of uniform circular motion?

Motion of a racing car on a circular track

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Motion of the moon around the earth

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Motion of a toy train on a circular track

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Motion of seconds hand on the circular dial of a watch

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Solution

The correct option is A Motion of a racing car on a circular track
Answer is A.
An object moving in uniform circular motion is moving in a circle with a uniform or constant speed. The velocity vector is constant in magnitude but changing in direction.
Hence, the motion of a racing car on a circular track changes it speed, that is, it increases or decreases speed during the drive not a case of uniform circular motion.

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Similar questions

Which one of the following is most likely not a case of uniform circular motion?
(a) motion of the earth around the sun
(b) motion of a toy train on a circular track
(c) motion of a racing car on a circular track
(d) motion of hours' hand on the dial of a clock

Q. The tip of seconds' hand of a watch exhibits uniform circular motion on the circular dial of the watch
State whether given statement is True/False?

Q. (a) What is meant by uniform circular motion? Give two examples of uniform circular motion.
(b) The tip of seconds' hand of a clock takes 60 seconds to move once on the circular dial of the clock. If the radius of the dial of the clock be 10.5 cm, calculate the speed of the tip of the seconds' hand of the clock.

(Given π = \frac{22}{7})

In a stop watch if the second hand completes a rotation over the circular dial the minutes hand moves through _________ division which is equal to _________ minute of time.

Q. A racing car completes 5 rounds on a circular track in 2 minutes. Find the radius of the track if the car has uniform centripetal acceleration of

π^{2} m / s^{2}

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