Question: Now your bicycle wheel is rotating with an angular speed of 1 9 . 7 rad / s . The wheel has a mass of

Now your bicycle wheel is rotating with an angular speed of 19.7 rad/s. The wheel has a mass of 3.9 kg and a radius of 42.5 cm. Treat the wheel as a solid thin disc. a. Calculate the rotational kinetic energy of the wheel in J. Ans: 68.3 J b. Calculate the angular speed the wheel must have if its rotational kinetic energy is doubled, in rad/s.

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