Estimate the moment of inertia of a bicycle wheel 72 cm in diameter. The rim and tire have a combined mass of 1.4 kg . The mass
of the hub can be ignored. Express your answer to two significant figures and include the appropriate units.
1 answer:
Answer:
0.18 kg.m²
Step-by-step explanation:
Moment of Inertia (I) = m r²----------------------------------------------------------- (1)
Where
m= mass of the rim and tire
r = radius
I = mr²----------------------------------------------------------------------- (2)
m =1.4kg
r =72/2
= 36cm
= 0.36 m
Substituting into (2), we have :
I = 1.4 x(0.36)²
= 0.18144
≈ 0.18 kg.m²
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