Uniform Circular Motion

#uniformcircularmotion #Centripetalforce
From the term circular motion, one can clearly understand that the object is moving in a circular path. When we add the term ‘Uniform’ to the circular motion we mean that the object moves in a circular path but with a constant magnitude of velocity. Velocity is a vector quantity that has both magnitude and direction. In uniform circular motion although the magnitude of velocity remains constant the direction changes as the body moves in a circular path.
When the body moves a distance ‘d’ in a circular path of radius ‘r’, then the angular displacement is defined as the ratio of the distance moved in the circular path to the radius of the circular path. Velocity in circular motion has two components. Mainly angular velocity and tangential velocity. Angular velocity is a change in angular position with respect to time and it is responsible for the circular motion of the object. For uniform circular motion, the magnitude of angular velocity is constant. Tangential velocity is the velocity along the circular path at any point on the path and it helps the body move forward along the circular path.
Similar to velocity acceleration also has two components in a circular path. Namely angular acceleration and tangential acceleration. Angular acceleration is a change in angular velocity with respect to time. For uniform circular motion, angular acceleration is zero since angular velocity remains constant. Tangential acceleration ensures the body moves in a circular path and it is responsible for centripetal force. The simplest example of the centripetal force is the force acting on the Earth. This force acting on the Earth helps the Earth stay in its orbit.
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