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Block `A` shown in figure can slide over fixed rigid wire of quarter cicular shape in vertical plane String connected to `A` and `B` is massless and inextensible. System is released from rest when `theta = 0`. Determine the ratio `k = (M_(A))/(M_(B))` (approximate integer value) for whoch the system will come to rest again when `theta = 30^(@)`. |
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Answer» Correct Answer - 3 `M_(B)g(sqrt(2)R - R)-M_(A)g(R- (Rsqrt(3))/(2)) = 0` `rArr (M_(A))/(M_(B)) = (sqrt(2) - 1)/(1 - (sqrt(3))/(2)) = (0.41)/(1-0.86) = (0.41)/(0.14) = 3` |
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