Figure $1$ shows a particle with a mass $m$ of $0,19kg$ that travels at a constant speed $v$ in a circular path around a conical body. Determine the normal force $N($perpendicular to the surface of the cone$)$ and the tensile force $T$ in the cord. Neglect all friction, and use the values $h=0,84m$ and $v=0,63\frac{m}{s}.$ For what value of $v$ does the normal force go to zero?

Figure $1$: Particle in circular path around conical body