from a homework

Degree Level: Pre-College

 

Question:

Object 1 has a moment of inertia of 8 kg.m^2, and Object 2 has a moment of inertia of 2 kg.m^2. If Object 1 is rotating with an angular velocity of 1 rad/s, what angular velocity would give Object 2 the same rotational kinetic energy?

Answer:

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