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A sphere is placed on two similar cubes as shown. All surfaces are smooth. When velocity of sphere is `10ms^(-1)` vertical down then find magnitude of velocity of the block B with respect to block C. A. `10sqrt(3) ms^(-1)`B. `20sqrt(3)ms^(-1)`C. `30sqrt(3)ms^(-1)`D. `40sqrt(3)ms^(-1)`

Answer» `10cos 30^(@)=V_(B) cos 60^(@)`
`(10sqrt(3))/(2)=V_(B)(1)/(2)`
`V_(B)=10sqrt(3)`


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