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A straight rigid rod of mass `M` and length `L` lies on a smooth horizontal table. Taking the co-ordinate axes as shown in the figure and assuming an average force `ltFgt` acting for a small time interval `(/_ )`, at the end `A`, making an angle `30^@` with the `X`-axis, Based on the above passege, answer the following questions. Angular velocity of rod about `O` isA. `(3sqrt(5)ltFgt(/_ ))/(ML)`B. `(2sqrt(5)ltFgt(/_ ))/(ML)`C. `(2sqrt(3)ltFgt(/_ ))/(ML)`D. `(3sqrt(3)ltFgt(/_ ))/(ML)` |
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Answer» Correct Answer - D Angular impulse `=/_Iomega` `sqrt3/4(:F:)/_xxL=(ML^2)/12xximpliesomega=(3sqrt3( : F : )/_L)/(ML)` |
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