A rolling body was initially at rest on a rough floor and a force 
(parallel to floor) is applied on the top of the rolling body. Choose the correct option for the pure accelerated rolling.
will act in opposite direction of force
Text Solution
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This question is based on pure accelerated rolling. For pure accelerated rolling, 
. In this case, the friction will be zero if the rolling body is ring and for any other rolling body, static friction will be in the forward direction.The rolling body may be of different types, so moment of inertia of different rolling bodies will be different.
For ring,
For pure accelerated rolling,
So, for ring, there is no need of friction.
Other than ring
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