A solid steel disc is made of two thin concentric discs with the same thickness, t. as shown. The disc can rotate freely about the perpendicular axis through its centre of mass. It is subject to a torque T = 5 Nm. The parameters are as follows: Density of steel = 7860 Kg/m³ Diameter D1 = 0.3 m Diameter D2 = 0.5 m Thinkpo00 0.05 m t D1 D2

Elements Of Electromagnetics
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A solid steel disc is made of two thin
concentric discs with the same
thickness, t. as shown.
The disc can rotate freely about
the perpendicular axis through its centre
of mass. It is subject to a torque T = 5 Nm.
The parameters are as follows:
Density of steel = 7860 Kg/m³
Diameter D1 = 0.3 m
Diameter D2 = 0.5 m
Thickness t = 0.05 m
t
D1
D2
Calculate the angular acceleration of the disc. Give your answer in rad/s² to 2
decimal places.
Transcribed Image Text:A solid steel disc is made of two thin concentric discs with the same thickness, t. as shown. The disc can rotate freely about the perpendicular axis through its centre of mass. It is subject to a torque T = 5 Nm. The parameters are as follows: Density of steel = 7860 Kg/m³ Diameter D1 = 0.3 m Diameter D2 = 0.5 m Thickness t = 0.05 m t D1 D2 Calculate the angular acceleration of the disc. Give your answer in rad/s² to 2 decimal places.
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