$A$ hollow sphere of radius $R$ and mass $m$ is fully filled with water of mass $m$. It is rolled down a horizontal plane such that its centre of mass moves with a velocity $v$. If it purely rolls
$A$ hollow sphere of radius $R$ and mass $m$ is fully filled with water of mass $m$. It is rolled down a horizontal plane such that its centre of mass moves with a velocity $v$. If it purely rolls
- A
Kinetic energy of the sphere is $\frac{5}{6}\, mv^2$
- B
Kinetic energy of the sphere is $\frac{4}{5}\, mv^2$
- C
Angular momentum of the sphere about a fixed point on ground is $\frac{8}{3}\, mvR$
- D
Angular momentum of the sphere about a fixed point on ground is $\frac{14}{5}\, mvR$
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