# Question #8c491

Nov 13, 2017

The centripetal acceleration is ${a}_{c} = {v}^{2} / r$.

#### Explanation:

The acceleration is called centripetal acceleration. The formula is
${a}_{c} = {v}^{2} / r$
where v is the instantaneous velocity (or speed) and r is the radius.

I hope this helps,
Steve