In a lab experiment, a student brings up the rotational speed of a rotational motion apparatus to 30.0 rpm. She then allows the apparatus to slow down on its own, and counts 240 revolutions before the apparatus comes to a stop

The moment of inertia of the flywheel is 0.0850 kg?m2. What is the retarding torque on the flywheel? A)

0.0425 Nm
B)

0.159 Nm
C)

0.0787Nm
D)

0.000278 Nm
E)

0.0000136 Nm


D

Physics & Space Science

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