A barbell spins around a pivot at its center . the barbell, Ask an Expert

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Q. A barbell spins around a pivot at its center . The barbell consists of two small balls, each with mass m = 460 grams, at the ends of a very low mass rod whose length is L = 24 cm. The barbell spins with angular speed ω = 50 radians/s.

What is the rotational kinetic energy?

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