Question: A ceiling fan has four blades, each with a mass of 0.35 kg and a length of 60 cm. Model each blade as a rod

A ceiling fan has four blades, each with a mass of 0.35 kg and a length of 60 cm. Model each blade as a rod connected to the fan axle at one end. When the fan is turned on, it takes 4.35 s for the fan to reach its final angular speed of 1.8 rev/s. What torque was applied to the fan by the motor? Ignore torque due to the air?

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The rotational inertia of each blade uniform rod is I 13 ML 2 where L ... View full answer

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