Physics Question . . cant solve
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Physics Question . . cant solve

[From: ] [author: ] [Date: 13-10-23] [Hit: ]
.E = ½Iω² ω is angular velocity in radians/secI = moment of inertia in kg•m²1 radian/sec = 9.877 rev/min x (1 rad/s / 9.55 rev/min) = 91.29e3 = ½I(91.I = 6.......
Cant figure this one out . . please help!!

"Calculate the rotational inertia of a wheel that has a kinetic energy of 29 kJ when rotating at 877 rev/min."

Thanks . .

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Angular kinetic energy E in Joules
E = ½Iω²
ω is angular velocity in radians/sec
I = moment of inertia in kg•m²
1 radian/sec = 9.55 rev/min

Assuming you want moment of inertia

877 rev/min x (1 rad/s / 9.55 rev/min) = 91.8 rad/s

E = ½Iω²
29e3 = ½I(91.8)² = 4217 I
I = 6.88 kg•m²
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