Question

Concerning an object moving with Uniform Circular Motion (UCM), the kind of motion that was the foundation for the explanation of the motion of planets since the time of Plato to the time of Kepler, which are true or not true of the object:

Constant speed?

Answer 1

Uniform circular motion describes an object moving in a circle at a constant speed, experiencing centripetal acceleration due to the continuous change in direction.

Step-by-step explanation:

Uniform circular motion (UCM) refers to motion in which an object travels in a circle at a constant speed. This motion is characterized by a constant magnitude of speed, but it is important to note that velocity, which includes direction, is not constant because the direction of the object is continuously changing as it moves along the circular path. As a result, an object undergoing UCM experiences centripetal acceleration, which points towards the center of the circular path, causing a change in velocity's direction but not its magnitude.

Addressing the given options, option C is correct: Uniform circular motion is when an object travels on a circular path at a constant speed. This is the definition of UCM, where the path is circular, the speed is constant, and there is centripetal acceleration.