2 2/170 The particle P moves down the spiral path which I is wrapped around the surface of a right circular ' cone of base radius b and altitude h. The angle 7 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 0 is constant. Determine the expression for the radial acceleration a, of the particle for any value of 9. Ans. a, = 1392(tan2 y sin2 )3 l)e\"' \"\"1 1' 5m 3 where B = tan"1 (b/h)