A particle tied to a string moves in a circular path in vertical plane. Its velocity at lowerst point is such that it just completes circle. Find the ratio of resultant force on particle at the lowerst point to that at highest point.

Answer

5

Explanation

`F_(1)=(mv_(1)^(2))/(e)`
`F_(2)=(mv_(2)^(2))/(e)`
`because(F_(1))/(F_(2))=5`