Two identical discs are positioned on a vertical axis. The bottom disc is rotating with angular velocity ω 0 . The top disc is initially at rest. It is allowed to fall and sticks to the lower disc. Ratio of K.E. before & after collision.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
⇒ tan θ = 
Sol. I ω 0 = 2I ω
(I : M.I. of one disc)
∴ K = 
2 I ω 2 = 
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