A small bob, attached to one end of a thin string of length \(1~\text m,\) is performing vertical circular motion. The ratio of the maximum tension to the minimum tension in the string is \(5:1.\) What is the bob's velocity at the highest point?
(take \(g=10~\text{m/s}^2\))
1. \(2~\text{m/s}\)
2. \(5~\text{m/s}\)
3. \(6~\text{m/s}\)
4. \(9~\text{m/s}\)
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