Question

A uniform disk of radius $R$ and mass $m$ is pivoted to rotate about a horizontal axis a distance $d$ from the center of the disk. a. What is the moment of inertia of the disk through this pivot point in terms of m,d and R? b. If the disk is released from rest in a horizontal position (left picture), what is the magnitude of the initial angular acceleration $alpha$ of the disk? c. If the disk is released from rest in a horizontal position, what is the magnitude of the initial linear acceleration $a$ of the part of the disk farthest from the pivot (labeled Q in this picture)? d. What is the angular speed $omega$ of the disk when it passes through the vertical position (right picture)?

          A uniform disk of radius $R$ and mass $m$ is pivoted to rotate about a horizontal axis a distance $d$ from the center of the disk.
a. What is the moment of inertia of the disk through this pivot point in terms of m,d and R?
b. If the disk is released from rest in a horizontal position (left picture), what is the magnitude of the initial angular acceleration $alpha$ of the disk?
c. If the disk is released from rest in a horizontal position, what is the magnitude of the initial linear acceleration $a$ of the part of the disk farthest from the pivot (labeled Q in this picture)?
d. What is the angular speed $omega$ of the disk when it passes through the vertical position (right picture)?

A uniform disk of radius R and mass m is pivoted to rotate about a horizontal axis a distance d from the center of the disk.
a. What is the moment of inertia of the disk through this pivot point in terms of m,d and R?
b. If the disk is released from rest in a horizontal position (left picture), what is the magnitude of the initial angular acceleration alpha of the disk?
c. If the disk is released from rest in a horizontal position, what is the magnitude of the initial linear acceleration a of the part of the disk farthest from the pivot (labeled Q in this picture)?
d. What is the angular speed omega of the disk when it passes through the vertical position (right picture)?

Added by Sara C.

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