a string is wound around a hollow cylinder of mass 
and radius 
If the string is now pulled with a horizontal force of 40 N, and the cylinder is rolling without slipping ona horizontal surface (see figure), then the angular acceleration of the cylinder will be (Neglect the mass and thickness of the string):
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
From newton's second law
Taking torque about 
we get
Solving equation 
and 
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