Part A The propeller of a World War II fighter plane is 2.40 m in diameter. What

Question

Part A The propeller of a World War II fighter plane is 2.40 m in diameter. What is its angular velocity in radians per second if it spins at 1430 rev/min? Submit Answer Tries 0/10 Part B What is the linear speed of its tip at this angular velocity if the plane is stationary on the tarmac? Submit Answer Tries 0/10 Part C What is the centripetal acceleration of the propeller tip under these conditions? Calculate it in meters per second squared and convert to multiples of g Acceleration - Number of g's

Explanation / Answer

(A)

w = 1430 rev/min

w = 1430 * 2*pi /60 rad/s

w = 149.67 rad/s

(B)

v = w r

v = (149.67)*(2.40/2)

v = 179.60 m/s

(C)

ac = w2* r

ac = (149.67)2*(2.40/2)

ac = 26881.33 m/s2

ac/g = 26881.33 /9.8

ac = 2743*g

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