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Grade: 11
        
Two different disks of radii r1 > r2 are free to spin separately about an axis through the center and perpendicular to the plane of each disk. Both disks start from rest, and both undergo the same angular acceleration for the same length of time. Which disk will have the larger final angular velocity?
(A) Disk 1
(B) Disk 2
(C) The disks will have the same angular velocity.
(D) The answer depends on the mass of the disks.
5 years ago

Answers : (1)

Aditi Chauhan
askIITians Faculty
396 Points
							The correct option is: (C) the disks will have the same angular velocity.
The magnitude of final angular velocity is given as: 236-1903_1.PNG
Therefore the magnitude of final angular velocity for disk1 is equal to the magnitude of final angular velocity for disk2, and (C) is the correct option.
5 years ago
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  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


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