Uniform circular motion is a type of motion in which an object moves in a circular path at a constant speed. This means that the magnitude of the object's velocity remains constant, but its direction is constantly changing.
An object will undergo uniform circular motion if it experiences a centripetal force, which is a force directed towards the center of the circular path. This force is necessary to keep the object moving in a circular path at a constant speed.
In linear motion, an object moves in a straight line at a constant speed. In uniform circular motion, the object moves in a circular path at a constant speed. Additionally, in uniform circular motion, the object undergoes a change in direction, while in linear motion the direction remains constant.
In uniform circular motion, the direction of the object's velocity is constantly changing, meaning that it is undergoing acceleration. However, the magnitude of the velocity remains constant, so the acceleration is perpendicular to the velocity and directed towards the center of the circular path.
Centripetal force is the force that keeps an object moving in a circular path at a constant speed. In uniform circular motion, the magnitude of the centripetal force is equal to the mass of the object multiplied by the square of its velocity divided by the radius of the circular path.