A wheel of moment of inertia 2 Kg m² is rotating about an axis passing through centre and perpendicular to its plane at a speed 60 rad/s. Due to friction, it comes to rest in 5 minutes. The angular momentum of the wheel three minutes before it stops rotating is A) 24 Kg m?/s C) 72 Kg m?/s B) 48 Kg m²/s D) 96 Kg m²/s

A wheel of moment of inertia 2 Kg m² is rotating about an axis passing through centre and perpendicular to its plane at a speed 60 rad/s. Due to friction, it comes to rest in 5 minutes. The angular momentum of the wheel three minutes before it stops rotating is A) 24 Kg m?/s C) 72 Kg m?/s B) 48 Kg m²/s D) 96 Kg m²/s