What is the angular velocity of a spinning object if it has a rotational kinetic energy...

Question

Question

What is the angular velocity of a spinning object if it has a rotational kinetic energy of 280J, and a rotational inertia of 22900kg*m²?

science physics

Answer 1

Answer #1

The rotational Kinetic energy is given as

K.E = 1/2 * I * w²

where I is Inertia and w is angular velocity

280 = 1/2 * 22900 * w²

w² = 2 * 280 / 22900

w² = 0.0244

so,

w = 0.15637 rad/sec

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Answer 2

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