A centrifuge rotor has a moment of inertia of 3.20 10-2 kg·m2.?
A centrifuge rotor has a moment of inertia of 3.20 x 10^-2 kg·m². How much energy is required to accelerate it from rest to a speed of 8000 revolutions per minute (rpm)?
2 Answers
8000 rpm = 8000*2pi/60 rad/sec = 837.8 rad/sec = angular speed w
Energy required = increase in KE
= 0.5*I*w^2
= 0.5*3.2*10^-2*(837.8)^2 J
= 11230 J
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