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Question

At takeoff a commercial jet has a 70.0 m/s speed. Its tires have a diameter of 0.550 m.


(a)

At how many rpm are the tires rotating?

 rpm


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

 m/s2


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

 N


(d) Take the ratio of this force to the bacterium's weight.

 (force from part (c) / bacterium's weight)

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