A hollow sphere of radius `R` and mass `m` 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 5/6 `mv^(2)`
B. kinetic energy of the sphere is 4/5 `mv^(2)`
C. Angular momentum of the sphere about a fixed point on ground is 8/3 mvR
D. Angular momentum of the sphere about a fixed point on ground is 14/5 mvR
A. Kinetic energy of the sphere is 5/6 `mv^(2)`
B. kinetic energy of the sphere is 4/5 `mv^(2)`
C. Angular momentum of the sphere about a fixed point on ground is 8/3 mvR
D. Angular momentum of the sphere about a fixed point on ground is 14/5 mvR
Correct Answer – C