A point mass of 1 kg is attached to a massless string and free to rotate about a fixed point in circular motion. Initially the radius is 4.00 m with an angular velocity wini =3.10 rad/s. Draw a picture. Part A Find the initial moment of inertia of the point mass about the axis of rotation. O 1.84 kg - m? O 30.4 kg + m? O 16.0 kg m? O 13.6 kg • m O 3.20 kg • m?
A point mass of 1 kg is attached to a massless string and free to rotate about a fixed point in circular motion. Initially the radius is 4.00 m with an angular velocity wini =3.10 rad/s. Draw a picture. Part A Find the initial moment of inertia of the point mass about the axis of rotation. O 1.84 kg - m? O 30.4 kg + m? O 16.0 kg m? O 13.6 kg • m O 3.20 kg • m?
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Transcribed Image Text:A point mass of 1 kg is attached to a massless string and free to rotate about a fixed point in circular motion.
Initially the radius is 4.00 m with an angular velocity wini =3.10 rad/s. Draw a picture.
Part A
Find the initial moment of inertia of the point mass about the axis of rotation.
O 1.84 kg m2
O 30.4 kg + m?
O 16.0 kg • m
O 13.6 kg • m?
O 3.20 kg • m?
Transcribed Image Text:The tension of the string is increased to pull the mass in toward the center of the circular motion and reduce the
radius to 2.00 m Draw a picture.
The magnitude of the torque produced on the mass is,
not equal to zero.
O equal to zero.
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Part E
Find the final angular velocity wfinal.
O 17.4 rad/s
2.27 rad/s
O 12.4 rad/s
O 9.55 rad/s
O 26.0 rad/s
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