Uniform circular motion is the motion of an object along a circular path at a constant speed. This means that the object is moving at the same speed and covering the same distance in the same amount of time throughout its motion.
In the context of a coffee cup, uniform circular motion refers to the motion of the cup as it rotates on a flat surface. This type of motion is commonly seen when stirring a cup of coffee or when a spinning top is placed on a table.
Centripetal force is the force that keeps an object in circular motion. In the case of a coffee cup, the centripetal force is provided by the friction between the cup and the surface it is rotating on.
The radius of the circular path has a direct impact on the speed of the object in uniform circular motion. The larger the radius, the faster the object needs to move in order to maintain a constant speed.
No, in uniform circular motion, the speed of the object remains constant. However, the direction of the object's velocity is constantly changing as it moves along the circular path.