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.
Pimple On Tongue. You probably hate having pimples on tongue. If you have tongue there is a big chance you will get them at some point in your life. They make you talk funny, you feel pain, and unfortunately the food doesnât taste the same anymore. Causes Pimples on Tongue. Don`t believe your grandma or your old aunt if they say that you got those red spots on your tongue because you told a lie, there is something else that caused the pimple. They appear as a result of some kind of an irritation to the papillae on your tongue.