21. When a vehicle is following a curved path there must be a centripetal force. 22. Assume a path along a circular arc with radius r, which centripetal acceleration ). 23. For more detail, see centripetal force. 24. The progression is an example of centripetal harmony, harmony which leads to the pentatonic. 25. However, the removal of the major flakes can be unipolar, bipolar or centripetal . 26. In these 5 cases Cotes considers the force to be centripetal , towards the centre. 27. The term " centripetal force " refers to the part that causes you to rotate. 28. This force is directed toward the center of rotation and is called the centripetal force. 29. Therefore the CoM would be accelerating toward the point of rotation ( centripetal acceleration ). 30. We are currently in the centripetal -cold phase during which everything is cooling down.