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## Homework Statement

Two cars drive around in circles at constant speeds. Car B's circle is twice as large as car A's, but its centripetal acceleration is three times as large. How many times faster is car B driving than car A?

## Homework Equations

I'm trying to use a=(v^2/r) for centripetal acceleration.

## The Attempt at a Solution

I don't really know where to start on this one.

Per our answer key, the answer should be: 2.45 times faster.