A heavy turntable, used for rotating large objects, is a solid cylindrical wheel that can rotate about its central axle with negligible friction. The radius of the wheel is 0.330 m. A constant tangential force of 300 N applied to its edge causes the wheel to have an angular acceleration of 0.876 rad/s2.
(a)
What is the moment of inertia of the wheel (in kg · m2)?
_____ kg · m2
(b)
What is the mass (in kg) of the wheel?
_________ kg
(c)
The wheel starts from rest and the tangential force remains constant over a time period of 6.00 s. What is the angular speed (in rad/s) of the wheel at the end of this time period?
________ rad/s
Concept - use Newton’s law of motion for
rotational motion and equation of kinematics to find solutions as
shown below
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