A centripetal force (from Latin centrum center and petere to seek) is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.
There are a number of things that can cause a whitish coating or white spots to develop on the tongue, including the f ollowing: 1  Leukoplakia. 2  Oral thrush. 3  Oral lichen planus.
The cause and cure of those white spots on your tongue can be determined by your doctor after a thorough examination. Some rules like maintaining good oral hygiene and avoiding habits like alcohol and tobacco which irritate the tongue apply for all cases of white spots on the tongue.