engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Physics Rotational Motion The Angular Momentum
A wheel of moment of inertia \(2\ Kg\ m^{2}\) 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
1
\(24\ Kg\ m^{2}/s\)
2
\(48\ Kg\ m^{2}/s\)
3
\(72\ Kg\ m^{2}/s\)
4
\(96\ Kg\ m^{2}/s\)