At takeoff a commercial jet has a 65.0 m/s speed. Its tires have a diameter of 0.700 m.

Question

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

Incorrect: Your answer is incorrect.
rpm
(b) What is the centripetal acceleration at the edge of the tire?

Incorrect: Your answer is incorrect.
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)

Answer 1

(a)
65.0 m/s * 1rev/.700π m = 29.557 rev/s