Sympathectomy definition: the surgical excision or chemical destruction ( chemical sympathectomy ) of one or more... | Meaning, pronunciation, translations and examples English Dictionary | Thesaurus | Translator | Grammar | Scrabble | Blog
Deriving the centripetal acceleration formula. A body that moves in a circular motion (of radius r) at constant speed (v) is always being accelerated. The acceleration is at right angles to the direction of motion (towards the center of the circle) and of magnitude v2 / r. The direction of acceleration is deduced by symmetry arguments.
A force always causes the centripetal acceleration. For a swingball (or tetherball) game, it is the tension in the string. For a satellite, it is the force of gravity. For a car moving around a corner, it is the frictional force between the car and the road. If you remove that force, you remove the centripetal acceleration, and if you remove the centripetal acceleration, the object will continue in a straight line tangent to the circle. Equation