Answer
The speed of an object is constant.
The angular velocity is constant.
The magnitude of the net force is constant
Work Step by Step
In uniform circular motion, an object moves in a circle at a constant speed.
The speed of an object is constant.
The direction of motion changes so the velocity is not constant.
The angular velocity is constant since the object moves around the circle at a constant speed.
The magnitude of centripetal acceleration is constant but the direction changes because it always points toward the center of the circle as the object moves around the circle. Since the direction changes, we can not say that centripetal acceleration is constant.
Although the direction of the net force changes, the magnitude of the net force is constant since it depends on the speed and the radius which are both constant.
