Physics-
General
Easy
Question
A disc is rolling (without slipping) on a horizontal surface 
is its centre and 
and 
are two points equidistant from . Let 
, 
and 
be the magnitude of velocities of pints 
and respectively, then
,
,
The correct answer is:
In case of pure rolling bottommost point is the instantaneous centre of zero velocity.
Velocity of any point on the disc, 
,
where 
is distance of point from 
.
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