1.

A sphere is rolling without slipping on a fixed horizontal plane surface. In the figure, A is the point of contact, B is the centre of the sphere and C is its topmost point Then

Answer»

`vec(V)_(C)-vec(V)_(A)=2(vec(V)_(B)-vec(V)_(C))`
`vec(V)_(C)-vec(V)_(B)=vec(V)_(B)-vec(V)_(A)`
`|vec(V)_(C)-vec(V)_(A)|=2|vecV_(B)-vec(V)_(C)|`
`|vec(V)_(C)-vec(V)_(A)|=4|vecV_(B)|`

ANSWER :B::C


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