Rotation 2 Question 11
11. A disc of mass and radius is rolling with angular speed on a horizontal plane as shown. The magnitude of angular momentum of the disc about the origin is
(1999, 2M)
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 11. (c)
Solution:
- From the theorem
(a)
(b)
We may write
Angular momentum about
NOTE That in this case [ Figure (a) ] both the terms in Eq. (i), i.e.