Question

which motion is most likely not a case of uniform circular motion
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Answer 1

Answer:

Motion of a racing car on a circular track. For a racing car, speed of the car is not constant (its either accelerating or decelerating). Hence, it is not uniform circular motion.

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Answer 2

Motion of a racing car on a circular track .For racing car either it's speed increase or decrease.Hence , it is not a case of uniform circular motion.