When a ceiling fan is switched off, its angular velocity falls to half while it makes 36 rotations. How many more rotations will it make before coming to rest?
24
36
18
12
Get Answer
A disc is given a linear velocity on a rough horizontal surface then its angular momentum is
conserved about COM only
conserved about the point of contact only
conserved about all the points
not conserved about any point.
Which of the following statements about angular momentum is correct?
It is directly proportional to moment of inertia
It is a scalar quantity
both (a) and (b)
None of these
From , we find that angular momentum is directly proportional to the moment of inertia.
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