Physics

The object that maintains constant kinetic energy during its motion is: Uniform circular motion.

In uniform circular motion, the object moves at a constant speed, which means its velocity's magnitude is constant. Since kinetic energy depends on the square of the speed, and the speed is constant, the kinetic energy remains constant.

Kinetic energy is constant.

Free fall motion:

In free fall, the object is accelerating due to gravity. As it falls, its speed increases, and thus its kinetic energy changes.

Kinetic energy is not constant.

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