An airplane propeller is 202 min length from tip to tip


An airplane propeller is 2.02 min length (from tip to tip) with mass 109 kg. The propeller is rotating at 2000 rev/min about an axis through its center.

(a) What is its rotational kinetic energy? Treat thepropeller as a slender rod.

__________ J

(b) If it were not rotating, how far would it have to drop in freefall to acquire the same kinetic energy?

__________ km

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Physics: An airplane propeller is 202 min length from tip to tip
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