Which of the following must be happening if an object is in uniform circular
motion?
O A. The object's centripetal acceleration must be changing.
B. The object's speed must be changing.
C. The object's velocity must be changing.
D. The object must be moving in a straight line.
SUBMIT

It is defined as of motion when the object is moving in a circle with a constant speed and its velocity is changing with every moment because of the change of direction but the speed of the object is constant in an uniform circular motion.

The acceleration of the object is constant throughout the motion in an uniform circular motion, for example the planets revolving around the sun in our solar system is a very good example of uniform circular motion.

The motion of a cyclist around the circular track is also an example of uniform circular motion.

Hence, when an object moves with a uniform acceleration the objects velocity must be changing but the speed of the object would remain same, therefore the correct option would be option C.

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Which of the following must be happening if an object is in uniform circular motion? O A. The object's centripetal acceleration must be changing. B. The object's speed must be changing. C. The object's velocity must be changing. D. The object must be moving in a straight line. SUBMIT

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What is an uniform circular motion?

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Which of the following must be happening if an object is in uniform circular
motion?
O A. The object's centripetal acceleration must be changing.
B. The object's speed must be changing.
C. The object's velocity must be changing.
D. The object must be moving in a straight line.
SUBMIT