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A uniform solid sphere of radius r = 0.410 m and mass m = 13.0 kg turns clockwise about a vertical axis through its center (when viewed from above),...

A uniform solid sphere of radius r = 0.410 m and mass m = 13.0 kg turns clockwise about a vertical axis through its center (when viewed from above), at an angular speed of 3.20 rad/s. What is its vector angular momentum about this axis? (Enter the magnitude in kg · m2/s.)


magnitude ?
direction?

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Answer #1

Here we apply definition of angular momentum and formula for angular momentum. We also apply formula for rotational inertia of sphere about given axis.

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