Question

What is centripetal and centrifugal ?

Answer 1

Centrifugal force (Latin for "center fleeing") describes the tendency of an object following a curved path to fly outwards, away from the center of the curve. It's not really a force; it results from inertia — the tendency of an object to resist any change in its state of rest or motion.
Centripetal force is a real force that counteracts the centrifugal force and prevents the object from "flying out," keeping it moving instead with a uniform speed along a circular path.
$\begin{array}{ccc}& CentrifugalForce& CentripetalForce\\ Meaning& Tendencyofanobjectfollowingacurvedpathtoflyawayfromthecenterofcurvature.Mightbedescribedas“lackofcentripetalforce.”& Theforcethatkeepsanobjectmovingwithauniformspeedalongacircularpath.\\ Direction& Alongtheradiusofthecircle,fromthecentertowardstheobject.& Alongtheradiusofthecircle,fromtheobjecttowardsthecenter.\\ Example& Mudflyingoffatire;childrenpushedoutonaroundabout.Satelliteorbitingaplanet& \\ Formula& Fc=\frac{m{v}^2}{r}& Fc=\frac{m{v}^2}{r}\end{array}$