A rope is wound around a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceleration of the cylinder if the rope is pulled with a force of 30 
?
A
0.25 rad 
B
25 rad 
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
: 
Moment of inertia of hollow cylinder about its axis 
kg 
The torque is given by,
where 
moment of inertia,
angular acceleration
In the given case, 
, as the force is acting perpendicularly to the radial vector. 
rad 
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