A round disc of moment of inertia 
about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia 
rotating with an angular velocity 
about the same axis. The final angular velocity of the combination of discs is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
: Applying conservation of angular momentum.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A solid sphere is in rolling motion. In rolling motion a body possesses translational kinetic energ…
A solid sphere is rotating freely about its symmetry axis in free space. The radius of the sphere i…
Three objects, : (a solid sphere), : (a thin circular disk) and : (a circular ring), each have t…
The moment of the force, at , about the point , is given by
A rope is wound around a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceler…
Two discs of same moment of inertia rotating about their regular axis passing through centre and pe…