A 100-kg disc of radius 50 cm is rotating at 1200 rpm. What is its kinetic...

Question

Question

A 100-kg disc of radius 50 cm is rotating at 1200 rpm. What is its kinetic energy?

Answer 1

Answer #1

The moment ofinertia of the diskis 1--mr2=1(100 kg)(0.50 m). 12.5 kg m2 The kinetic energy of the di sk is (125kg ma)(1200 ra

Answer 2

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