a solid cylinder of mass 4 kg and radius 20 cm is rotating about its axis with a frequency of 10/pai Hz.what is the rotational kinetic energy of the cylinder?
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The rotational kinetic energy is equal to
=1/2Iw^2
I is the moment of inertia
I for cylinder is Mr^2
4*20*20/10000
W=2pai*frequency
W=2*pai*10/pai=20
Rest is calculation
=1/2Iw^2
I is the moment of inertia
I for cylinder is Mr^2
4*20*20/10000
W=2pai*frequency
W=2*pai*10/pai=20
Rest is calculation
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