Hence, it experiences equal and opposite centripetal & centrifugal forces. This inward-directed acceleration is called centripetal acceleration. The concept of simultaneous centrifugal and centripetal forces to provide a theory of family communication. I have characterized the social struggle as centrifugal and social solidarity as centripetal. Artificial gravity can be created using a centripetal force. This acceleration is known as centripetal acceleration. The ball's movement is caused by the force of gravity and the aircraft's centripetal acceleration. Assume the particle is oscillating in a circular path with non-zero centripetal acceleration. The apparent motion of the star is an apparent centripetal acceleration. This friction acts as centripetal force and tries to bend the outer tyres inwards. It is designed to prevent sudden changes in lateral (or centripetal) acceleration. A centripetal force of this form causes the elliptical motion. Cornering with centripetal acceleration as high as 2g is possible. After his 1679-1680 correspondence with Hooke, Newton adopted the language of inward or centripetal force. In this case it is said to be undergoing "centripetal" (directed towards the center) acceleration.