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

At takeoff, a commercial jet has a speed of 60.0 m/s. Its tires have a diameter of

0.850 m.

(a) At how many rpm are the tires rotating?

(b) What is the centripetal acceleration at the edge of the tire?

(c) With what force must a determined 10^{-15}kg bacterium cling to the rim?

(d) What is the ratio of this force to the bacteriumâ€™s weight?

2. Relevant equations

angular velocity = v/r

centripetal acceleration = v^2/r

3. The attempt at a solution

I divided 60.0 m/s by .425 m to get (a). To get (b) I squared 60.0 m/s and divided it by .425 m. I am really stuck on (c). I am thinking the force it needs to cling to the rim is equal to the centripetal force. So, does that mean I just multiple it's mass by the centripetal acceleration? Any help would be appreciated.

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# Homework Help: Circular motion bug on tire

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