Statement I : A sphere is performing pure rolling on a rough horizontal surface with constant angular velocity. Frictional force acting on the sphere is zero.Statement II : Velocity of contact point is zero.
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a
If both statement I and statement II are true and statement II is the correct explanation of statement I.
b
If both statement I and statement II are true but statement II is not the correct explanation of statement I.
c
If statement I is true but statement II is false
d
If both statement I and statement II are false
answer is C.
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Detailed Solution
If angular velocity is constant then frictional force acting on sphere is zero. In case of pure rolling relative velocity of contact point is zero.