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A solid sphere is sliding with a velocity V0  on a rough horizontal surface. Its velocity when it starts pure rolling is

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By Expert Faculty of Sri Chaitanya
a
57v0
b
27v0
c
v014
d
5v014

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detailed solution

Correct option is A

By conservation of angular momentum mv0r=Iω  +  mvrmv0r=25mr2ω  +  mvrv0=25rω  +  v=75v               v=rωv=5v07


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A disc of mass m and radius R is rolling on horizontal ground with linear velocity v. What is the angular momentum of the disc about an axis passing through bottom most point and perpendicular to the plane of motion?

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