(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The point on the bottom of a rolling object is instantaneously at rest (v = 0).

What is the acceleration of that point?

2. Relevant equations

3. The attempt at a solution

The formula given is a = [tex]\alpha[/tex]r, and r = 0. So I'm guessing it's zero as well, although that doesn't seem to make logical sense. Can anyone confirm that the answer is indeed zero?

(By the way, the equation for v = [tex]\omega[/tex]r, and in this case r = 0. So r has to be zero for the equation for a as well.

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# The point on the bottom of a rolling object is instantaneously at rest. Acceleration?

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