List-I (Recent Extinction) | List-II (Place) |
(A) Dodo | (I) Africa |
(B) Quagga | (II) Russia |
(C) Thylacine | (III) Mauritius |
(D) Steller’s Sea Cow | (IV) Australia |
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :