A stone of mass 𝑚 is tied to a string and is moved in a vertical circle of radius 𝑟 making 𝑛 revolutions per 𝑚𝑖𝑛𝑢𝑡𝑒. The total tension in the string when the stone is at its lowest point is

A stone of mass 𝑚 is tied to a string and is moved in a vertical circle of radius 𝑟 making 𝑛 revolutions per 𝑚𝑖𝑛𝑢𝑡𝑒. The total tension in the string when the stone is at its lowest point is

Question : A stone of mass 𝑚 is tied to a string and is moved in a vertical circle of radius 𝑟 making 𝑛 revolutions per 𝑚𝑖𝑛𝑢𝑡𝑒. The total tension in the string when the stone is at its lowest point is