Two disks are free to rotate about a shared axle. The moment of inertia of the l
ID: 1974812 • Letter: T
Question
Two disks are free to rotate about a shared axle. The moment of inertia of the lower disk is twice as large as the moment of inertia of the upper disk. As shown below, a disk either does not rotate, or rotates at an angular speed of or 2.
For the two configurations shown above: which one is true?
A) the magnitude of the angular momentum for the configuration A is greater than configuration B
B) the magnitude of the angular momentum for the configuration A is less than configuration B
C) the magnitude of the angular momentum for the configuration A is the same as configuration B
Explanation / Answer
C)both have same since first one cancels out the angular momentum of each disk leading to zero
while the second one will be zero if calculated