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 velocity?

Answer 1

In Uniform Circular Motion, an object travels at constant speed but its velocity changes due to continuous changes in direction.

Step-by-step explanation:

Concerning an object in Uniform Circular Motion (UCM), the only true statement is that it travels on a circular path at a constant speed. Although the object moves at a constant speed, its velocity is not constant, because velocity also considers direction and the direction is continuously changing in UCM. Hence, the object experiences a centripetal acceleration, which accounts for the change in direction of the velocity, even when speed remains unchanged.