# Physics

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Calculate the angular momentum and kinetic energy of a solid uniform sphere with a radius of 0.120 m and a mass of 14.0 kg if it is rotating at 6.00 rad/s about an axis through its center..

• Physics -

r=0.12 m
m=14 kg

Moment of inertia of sphere, I
= (2/5)mr2
=0.08064 kg-m2
Angular velocity, ω
Angular momentum, L
= Iω
= 0.48384 kg-m2/s.
Rotational kinetic energy, Kr
= (1/2)Iω2
= (1/2)0.08064 62 kg-m2/s/s
= 1.45152 kg-m2/s2

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