Two discs of moment of inertia I₁ = 4 kg m² and I₂ = 2 kg m² about their central axes & normal to their planes, rotating with angular speeds 10 rad/s & 4 rad/s respectively are brought into contact face to face with their axe of rotation coincident. The loss in kinetic energy of the system in the process i s_____J.
Physics · Rotational Motion · angular momentum in pure rotation and its conservation
Two discs of moment of inertia I₁ = 4 kg m² and I₂ = 2 kg m² about their central axes & normal to their planes, rotating with angular speeds 10 rad/s & 4 rad/s respectively are brought into contact face to face with their axe of rotation coincident. The loss in kinetic energy of the system in the process is_____J.