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Question
Which one of the following is most likely not a case of uniform circular motion?
Options
motion of the earth around the sun
motion of a toy train on a circular track
motion of a racing car on a circular track
motion of hours' hand on the dial of a clock
Solution
motion of a racing car on a circular track
For a body to move in uniform circular motion its speed must be constant. So, the answer is
(c) Motion of a racing car in a circular track.
A racing car do not travel at constant speed in a circular track.
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