Calculate the angular momentum of a solid uniform sphere witha radius of 0.120m

Question

Calculate the angular momentum of a solid uniform sphere witha radius of 0.120m and a mass of 14.0kg if it is rotating at6.00rad/s about an axis through its center. Calculate kinetic energy of a solid uniform sphere with aradius of 0.120m and a mass of 14.0kg if it is rotating at6.00rad/s about an axis through its center. Calculate the angular momentum of a solid uniform sphere witha radius of 0.120m and a mass of 14.0kg if it is rotating at6.00rad/s about an axis through its center. Calculate kinetic energy of a solid uniform sphere with aradius of 0.120m and a mass of 14.0kg if it is rotating at6.00rad/s about an axis through its center.

Explanation / Answer

Calculate the angular momentum of a solid uniform sphere witha radius of 0.120m and a mass of 14.0kg if it is rotating at6.00rad/s about an axis through its center.
moment of inertia I = 2*14.0*0.1202/5kg-m2
the angular momentum = I*6.00 = 0.484 kgm2/s

Calculate kinetic energy of a solid uniform sphere with aradius of 0.120m and a mass of 14.0kg if it is rotating at6.00rad/s about an axis through its center.
kinetic energy = I*6.002/2 = 1.45 J

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