The kinetic energy K of a particle moving along a circle of radius R depends on the distance covered s as `K=as^(2)`. The force acting on the particle is

Answer

`(2as^(2))/r`

Explanation

`mv^(2)//2 = as^(2), mv^(2) = 2as^(2), F_(2) = mv^(2)//r = 2as^(2)//R`