Part A Estimate the moment of inertia of a bicycle wheel 66 cm in diameter. The

Question

Part A Estimate the moment of inertia of a bicycle wheel 66 cm in diameter. The rim and tire have a combined mass of 1.2 kg Express your answer to two significant figures and include the appropriate units. x" != 11 Value kg Submit Previous Answers Request Answer X Incorrect; Try Again Enter your answer using dimensions of mass moment of inertia. Part B The mass of the hub (at the center) can be ignored (why?). The hub mass can be ignored because its mass is very small, and so it has a very small rotational inertia. The hub mass can be ignored because its distance from the axis of rotation is very small, and so it has a very small rotational inertia. nt

Explanation / Answer

moment of inertia of whell I = mr^2

given diameter d = 66 cm

r = d/2 = 33 cm = 0.33 m

I = 1.2*0.33^2 = 0.131 kg m^2

b) the hub mass can be ignored because its distance from the axis of rotation is very small and so it has a very small rotational inertia

monet of inertia depends on the distance from the axis of rotatin and distribution of mass

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