Question

Two disks of inertia I= 200 kg m² and radial velocities ω₁=5.0 rads^-1 and ω₂=10.0 rad s^-1, rotating towards the same direction. They are placed on top of each other. Find the energy that was lost during this process. Your answer in XXXX J

My previous answers: 7,500 J and 15,000 J are incorrect.

Answer 1