The acceleration which acts toward the center of the circle on an object in uniform circular motion; its magnitude is a = v2/r where v is the speed and r is the radius of the circle
Property of the motion of an object traveling in a circular path. Centripetal describes the force on the object, directed toward the centre of the circle, which causes a constant change in the object's direction and thus its acceleration. The magnitude of centripetal acceleration a is equal to the square of the object's velocity v along the curved path divided by the object's distance r from the centre of the circle, or a = v^2/r