# An airplane propeller consists of three radial blades, each of length 1.8 m and mass 20 kg. The propeller rotates at 2500 rev/min.

An airplane propeller consists of three radial blades, each of length 1.8 m and mass 20 kg. The propeller rotates at 2500 rev/min. If the airplane is flying around a curve of radius 500 m at a speed of 360 km/h, what is the rate of change of angular momentum of the propeller? What torque is required to change the angular momentum at this rate? Draw a diagram showing L, dL/dt, and torque.

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