A block follows the path as shown in the figure from height h. If radius of circular path is r, then relation that holds good to complete full circle is
1
\(h < \dfrac{5r}{2}\)
2
\(h > \dfrac{5r}{2}\)
3
\(h = \dfrac{5r}{2}\)
4
\(h \geq \dfrac{5r}{2}\)