What do you understand by centripetal acceleration? Derive the formula for the centripetal acceleration for a piratical moving on a circular path

What do you understand by centripetal force. A particle of mass  $\mathrm{m}$ is orbiting in a circular orbit of radius $\mathrm{r}$ with a uniform speed $\mathrm{v}$

 Find acceleration of the particle towards the centre of the path

What do you understand by centripetal force?  A particle of mass  $\mathrm{m}$ is orbiting in a circular orbit of radius $\mathrm{r}$ with a uniform speed $\mathrm{v}$. Find the acceleration of the particle towards the centre of the path and the centripetal force acting on the particle.