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A wooden wheel of radius "1m" and moment...

A wooden wheel of radius "1m" and moment of inertia `2kgm^(2)` is mounted on an axle so as to rotate freely.A bullet of mass "100gm" and speed "20m/s" is shot tangential to the wheel,strikes its edge and sticks in the rim.If the wheel was initially at rest,the angular velocity (in rev/s) just after the collision is

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