A stone of mass 1 𝑘𝑔 tied to a light inextensible string of length 𝐿 =10 3 𝑚 is whirling in a circular path of radius 𝐿 in a vertical plane. If the ratio of the maximum tension in the string to the minimum tension in the string is 4 and if 𝑔 is taken to be 10𝑚/ sec2 , the speed of the stone at the highest point of the circle is

Question: A stone of mass 1 𝑘𝑔 tied to a light inextensible string of length 𝐿 =10 3 𝑚 is whirling in a circular path of radius 𝐿 in a vertical plane. If the ratio of the maximum tension in the string to the minimum tension in the string is 4 and if 𝑔 is taken to be 10𝑚/ sec2 , the speed of the stone at the highest point of the circle is