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InterviewSolution
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A small body of mass m is tried to a string and revolved in a vertical circle of radius r. If the tension in the string at the highest point is mg, what is its speed there? |
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Answer» Solution :If `v_1` is the speed and `T_1` the TENSION in the string at the highest POINT, `T_1=mg=(mv_1^2)/(r)-mg` `therefore v_1^2=2rg "" therefore v_1=sqrt(2rg)` |
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