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Q.

A uniform solid sphere of mass m is placed on a sheet of paper on a horizontal surface. The coefficient of friction between paper and sphere is μ . If the paper is pulled horizontally with an acceleration?

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a

(a) the tension in the string is equal to mg sinθ

b

force acting on the cylinder is mg sinθ2

c

tension in the string is equal to mg sinθ2

d

frictional force acting on the cylinder is zero

answer is B, D.

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Detailed Solution

ma-f=ma0

fR=Iα ;  I=2mR25  ;  a0=Rα 

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