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## Homework Statement

You are running at 4.5 m/s around a circle 12m in diameter. Is the centripital acceleration perceptible?

## Homework Equations

a=v^2/r

## The Attempt at a Solution

I know that the centripital acceleration is 1.7m/s^2 (4.5^2/12). What I don't know is what it means for centripital acceleration to be perceptible. Can anyone help me/ explain what this means?