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23 Nov 2019

A helicopter has two blades as shown, each of which has a mass of240 kg and can be approximated as a thin rod of length 6.8 m. Theblades are rotating at an angular speed of 46 rad/s.

(a) What is the total moment of inertia of the two blades about theaxis of rotation?
1 kg · m2

(b) Determine the rotational kinetic energy of the spinningblades.
2 J

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Bunny Greenfelder
Bunny GreenfelderLv2
31 Jan 2019

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