The particle P moves down the spiral path which is wrapped around the surface of a right...

The particle P moves down the spiral path which is wrapped around the surface of a right circular cone of base radius b and altitude h. The angle between the tangent to the curve at any point and a horizontal tangent to the cone at this point is constant. Also the motion of the particle is controlled so that is constant. Determine the expression for the radial acceleration of the particle for any value of